SET search_path TO public;
+SET client_min_messages TO log;
+\set SHOW_CONTEXT always
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
QUERY PLAN
--------------------------------------
LOAD 'pg_hint_plan';
SET pg_hint_plan.debug_print TO on;
-SET client_min_messages TO LOG;
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
QUERY PLAN
--------------------------------------
/*+ Test (t1 t2) */
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
-INFO: hint syntax error at or near "Test (t1 t2) "
-DETAIL: Keyword "Test" does not exist.
+INFO: pg_hint_plan: hint syntax error at or near "Test (t1 t2) "
+DETAIL: Unrecognized hint keyword "Test".
QUERY PLAN
--------------------------------------
Merge Join
-> Index Scan using t2_pkey on t2
(4 rows)
-SET pg_hint_plan.enable TO off;
+SET pg_hint_plan.enable_hint TO off;
/*+ Test (t1 t2) */
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
QUERY PLAN
-> Index Scan using t2_pkey on t2
(4 rows)
-SET pg_hint_plan.enable TO on;
+SET pg_hint_plan.enable_hint TO on;
/*Set(enable_indexscan off)*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
QUERY PLAN
/*+Set(enable_indexscan off) /* nest comment */ */
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
-INFO: hint syntax error at or near "/* nest comment */ */
+INFO: pg_hint_plan: hint syntax error at or near "/* nest comment */ */
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;"
-DETAIL: Block comments nest doesn't supported.
+DETAIL: Nested block comments are not supported.
QUERY PLAN
--------------------------------------
Merge Join
-> Seq Scan on t2
(5 rows)
+EXPLAIN (COSTS false) /*+Set(enable_indexscan off)*/
+ SELECT * FROM t1, t2 WHERE t1.id = t2.id;
+LOG: pg_hint_plan:
+used hint:
+Set(enable_indexscan off)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------
+ Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Seq Scan on t1
+ -> Hash
+ -> Seq Scan on t2
+(5 rows)
+
/*+ Set(enable_indexscan off) Set(enable_hashjoin off) */
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
LOG: pg_hint_plan:
/*+Set(work_mem "1M")*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
INFO: invalid value for parameter "work_mem": "1M"
-HINT: Valid units for this parameter are "kB", "MB", and "GB".
+HINT: Valid units for this parameter are "B", "kB", "MB", "GB", and "TB".
LOG: pg_hint_plan:
used hint:
not used hint:
/*+Set(work_mem TO "1MB")*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
-INFO: hint syntax error at or near ""1MB")"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near "Set(work_mem TO "1MB")"
+DETAIL: Set hint requires name and value of GUC parameter.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+Set(work_mem TO 1MB)
+
QUERY PLAN
--------------------------------------
Merge Join
/*+SeqScan(t1 t2)*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
-INFO: hint syntax error at or near "t2)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: SeqScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+SeqScan(t1 t2)
+
QUERY PLAN
--------------------------------------
Merge Join
QUERY PLAN
--------------------------------------------------
Merge Join
- Merge Cond: (t1.id = t4.id)
+ Merge Cond: (t1.id = t3.id)
-> Merge Join
- Merge Cond: (t1.id = t3.id)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+ -> Materialize
-> Merge Join
- Merge Cond: (t1.id = t2.id)
- -> Index Scan using t1_pkey on t1
- -> Index Scan using t2_pkey on t2
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
-(12 rows)
+ Merge Cond: (t3.id = t4.id)
+ -> Index Scan using t3_pkey on t3
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+(13 rows)
/*+HashJoin(t3 t4 t1 t2)*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id;
QUERY PLAN
--------------------------------------------------
Merge Join
- Merge Cond: (t1.id = t4.id)
+ Merge Cond: (t1.id = t3.id)
-> Merge Join
- Merge Cond: (t1.id = t3.id)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+ -> Materialize
-> Merge Join
- Merge Cond: (t1.id = t2.id)
- -> Index Scan using t1_pkey on t1
- -> Index Scan using t2_pkey on t2
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
-(12 rows)
+ Merge Cond: (t3.id = t4.id)
+ -> Index Scan using t3_pkey on t3
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+(13 rows)
/*+Leading( */
EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id;
-INFO: hint syntax error at or near ""
-DETAIL: Relation name is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: Closing parenthesis is necessary.
QUERY PLAN
--------------------------------------------------
- Merge Join
- Merge Cond: (t1.id = t4.id)
+ Nested Loop
-> Merge Join
- Merge Cond: (t1.id = t3.id)
+ Merge Cond: (t1.id = t4.id)
-> Merge Join
Merge Cond: (t1.id = t2.id)
-> Index Scan using t1_pkey on t1
-> Index Scan using t2_pkey on t2
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (id = t1.id)
(12 rows)
/*+Leading( )*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id;
-INFO: hint syntax error at or near "Leading( )"
-DETAIL: In Leading hint, specified relation name 2 or more.
+INFO: pg_hint_plan: hint syntax error at or near "Leading( )"
+DETAIL: Leading hint requires at least two relations.
LOG: pg_hint_plan:
used hint:
not used hint:
QUERY PLAN
--------------------------------------------------
- Merge Join
- Merge Cond: (t1.id = t4.id)
+ Nested Loop
-> Merge Join
- Merge Cond: (t1.id = t3.id)
+ Merge Cond: (t1.id = t4.id)
-> Merge Join
Merge Cond: (t1.id = t2.id)
-> Index Scan using t1_pkey on t1
-> Index Scan using t2_pkey on t2
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (id = t1.id)
(12 rows)
/*+Leading( t3 )*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id;
-INFO: hint syntax error at or near "Leading( t3 )"
-DETAIL: In Leading hint, specified relation name 2 or more.
+INFO: pg_hint_plan: hint syntax error at or near "Leading( t3 )"
+DETAIL: Leading hint requires at least two relations.
LOG: pg_hint_plan:
used hint:
not used hint:
QUERY PLAN
--------------------------------------------------
- Merge Join
- Merge Cond: (t1.id = t4.id)
+ Nested Loop
-> Merge Join
- Merge Cond: (t1.id = t3.id)
+ Merge Cond: (t1.id = t4.id)
-> Merge Join
Merge Cond: (t1.id = t2.id)
-> Index Scan using t1_pkey on t1
-> Index Scan using t2_pkey on t2
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (id = t1.id)
(12 rows)
/*+Leading( t3 t4 )*/
/*+Leading(t3 t4 t1 t2 t1)*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id;
+INFO: pg_hint_plan: hint syntax error at or near "Leading(t3 t4 t1 t2 t1)"
+DETAIL: Relation name "t1" is duplicated.
LOG: pg_hint_plan:
used hint:
-Leading(t3 t4 t1 t2 t1)
not used hint:
duplication hint:
error hint:
+Leading(t3 t4 t1 t2 t1)
QUERY PLAN
--------------------------------------------------
Nested Loop
-> Merge Join
- Merge Cond: (t3.id = t1.id)
+ Merge Cond: (t1.id = t4.id)
-> Merge Join
- Merge Cond: (t3.id = t4.id)
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
- -> Index Scan using t1_pkey on t1
- -> Index Scan using t2_pkey on t2
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
Index Cond: (id = t1.id)
(12 rows)
/*+Leading(t3 t4 t4)*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id;
-INFO: hint syntax error at or near "Leading(t3 t4 t4)"
-DETAIL: Relation name "t4" is duplicate.
+INFO: pg_hint_plan: hint syntax error at or near "Leading(t3 t4 t4)"
+DETAIL: Relation name "t4" is duplicated.
LOG: pg_hint_plan:
used hint:
not used hint:
QUERY PLAN
--------------------------------------------------
- Merge Join
- Merge Cond: (t1.id = t4.id)
+ Nested Loop
-> Merge Join
- Merge Cond: (t1.id = t3.id)
+ Merge Cond: (t1.id = t4.id)
-> Merge Join
Merge Cond: (t1.id = t2.id)
-> Index Scan using t1_pkey on t1
-> Index Scan using t2_pkey on t2
- -> Index Scan using t3_pkey on t3
- -> Sort
- Sort Key: t4.id
- -> Seq Scan on t4
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (id = t1.id)
(12 rows)
EXPLAIN (COSTS false) SELECT * FROM t1, (VALUES(1,1),(2,2),(3,3)) AS t2(id,val) WHERE t1.id = t2.id;
(5 rows)
-- single table scan hint test
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
- QUERY PLAN
------------------------------------------------------------------------------------------------------
- Index Scan using t1_pkey on t1 (cost=1.89..10.16 rows=1 width=4)
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+ QUERY PLAN
+------------------------------------------------------------------------
+ Index Only Scan using t1_pkey on t1
Index Cond: (id = $3)
InitPlan 2 (returns $1)
- -> Result (cost=0.94..0.95 rows=1 width=0)
+ -> Result
InitPlan 1 (returns $0)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_1 (cost=0.00..8.43 rows=9 width=4)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_1
Index Cond: ((id IS NOT NULL) AND (id < 10))
InitPlan 4 (returns $3)
- -> Result (cost=0.94..0.95 rows=1 width=0)
+ -> Result
InitPlan 3 (returns $2)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_2 (cost=0.00..8.43 rows=9 width=4)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_2
Index Cond: ((id IS NOT NULL) AND (id < 10))
(14 rows)
/*+BitmapScan(v_1)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(v_1)
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------------------------
- Index Scan using t1_pkey on t1 (cost=29.34..37.61 rows=1 width=4)
- Index Cond: (id = $2)
- InitPlan 1 (returns $0)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_1 (cost=4.32..28.36 rows=9 width=4)
+ QUERY PLAN
+------------------------------------------------------------------------
+ Index Only Scan using t1_pkey on t1
+ Index Cond: (id = $3)
+ InitPlan 1 (returns $1)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_1
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
- InitPlan 3 (returns $2)
- -> Result (cost=0.94..0.95 rows=1 width=0)
- InitPlan 2 (returns $1)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_2 (cost=0.00..8.43 rows=9 width=4)
+ InitPlan 3 (returns $3)
+ -> Result
+ InitPlan 2 (returns $2)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_2
Index Cond: ((id IS NOT NULL) AND (id < 10))
(14 rows)
/*+BitmapScan(v_2)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(v_2)
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------------------------
- Index Scan using t1_pkey on t1 (cost=29.34..37.61 rows=1 width=4)
- Index Cond: (id = $2)
+ QUERY PLAN
+------------------------------------------------------------------------
+ Index Only Scan using t1_pkey on t1
+ Index Cond: (id = $3)
InitPlan 2 (returns $1)
- -> Result (cost=0.94..0.95 rows=1 width=0)
+ -> Result
InitPlan 1 (returns $0)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_1 (cost=0.00..8.43 rows=9 width=4)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_1
Index Cond: ((id IS NOT NULL) AND (id < 10))
- InitPlan 3 (returns $2)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_2 (cost=4.32..28.36 rows=9 width=4)
+ InitPlan 3 (returns $3)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_2
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
(14 rows)
/*+BitmapScan(t1)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(t1)
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on t1 (cost=6.15..10.17 rows=1 width=4)
+ QUERY PLAN
+------------------------------------------------------------------------
+ Bitmap Heap Scan on t1
Recheck Cond: (id = $3)
InitPlan 2 (returns $1)
- -> Result (cost=0.94..0.95 rows=1 width=0)
+ -> Result
InitPlan 1 (returns $0)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_1 (cost=0.00..8.43 rows=9 width=4)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_1
Index Cond: ((id IS NOT NULL) AND (id < 10))
InitPlan 4 (returns $3)
- -> Result (cost=0.94..0.95 rows=1 width=0)
+ -> Result
InitPlan 3 (returns $2)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_2 (cost=0.00..8.43 rows=9 width=4)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_2
Index Cond: ((id IS NOT NULL) AND (id < 10))
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.26 rows=1 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id = $3)
(16 rows)
/*+BitmapScan(v_1)BitmapScan(v_2)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(v_1)
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------------------------------
- Index Scan using t1_pkey on t1 (cost=56.78..65.05 rows=1 width=4)
- Index Cond: (id = $1)
- InitPlan 1 (returns $0)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_1 (cost=4.32..28.36 rows=9 width=4)
+ QUERY PLAN
+--------------------------------------------------
+ Index Only Scan using t1_pkey on t1
+ Index Cond: (id = $3)
+ InitPlan 1 (returns $1)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_1
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
- InitPlan 2 (returns $1)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_2 (cost=4.32..28.36 rows=9 width=4)
+ InitPlan 2 (returns $3)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_2
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
(14 rows)
/*+BitmapScan(v_1)BitmapScan(t1)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(t1)
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on t1 (cost=33.60..37.61 rows=1 width=4)
- Recheck Cond: (id = $2)
- InitPlan 1 (returns $0)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_1 (cost=4.32..28.36 rows=9 width=4)
+ QUERY PLAN
+------------------------------------------------------------------------
+ Bitmap Heap Scan on t1
+ Recheck Cond: (id = $3)
+ InitPlan 1 (returns $1)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_1
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
- InitPlan 3 (returns $2)
- -> Result (cost=0.94..0.95 rows=1 width=0)
- InitPlan 2 (returns $1)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_2 (cost=0.00..8.43 rows=9 width=4)
+ InitPlan 3 (returns $3)
+ -> Result
+ InitPlan 2 (returns $2)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_2
Index Cond: ((id IS NOT NULL) AND (id < 10))
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.26 rows=1 width=0)
- Index Cond: (id = $2)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (id = $3)
(16 rows)
/*+BitmapScan(v_2)BitmapScan(t1)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(t1)
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on t1 (cost=33.60..37.61 rows=1 width=4)
- Recheck Cond: (id = $2)
+ QUERY PLAN
+------------------------------------------------------------------------
+ Bitmap Heap Scan on t1
+ Recheck Cond: (id = $3)
InitPlan 2 (returns $1)
- -> Result (cost=0.94..0.95 rows=1 width=0)
+ -> Result
InitPlan 1 (returns $0)
- -> Limit (cost=0.00..0.94 rows=1 width=4)
- -> Index Scan Backward using t1_pkey on t1 v_1 (cost=0.00..8.43 rows=9 width=4)
+ -> Limit
+ -> Index Only Scan Backward using t1_pkey on t1 v_1
Index Cond: ((id IS NOT NULL) AND (id < 10))
- InitPlan 3 (returns $2)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_2 (cost=4.32..28.36 rows=9 width=4)
+ InitPlan 3 (returns $3)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_2
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.26 rows=1 width=0)
- Index Cond: (id = $2)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (id = $3)
(16 rows)
/*+BitmapScan(v_1)BitmapScan(v_2)BitmapScan(t1)*/
-EXPLAIN SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
+EXPLAIN (COSTS false) SELECT (SELECT max(id) FROM t1 v_1 WHERE id < 10), id FROM v1 WHERE v1.id = (SELECT max(id) FROM t1 v_2 WHERE id < 10);
LOG: pg_hint_plan:
used hint:
BitmapScan(t1)
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------------------------------
- Bitmap Heap Scan on t1 (cost=61.04..65.05 rows=1 width=4)
- Recheck Cond: (id = $1)
- InitPlan 1 (returns $0)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_1 (cost=4.32..28.36 rows=9 width=4)
+ QUERY PLAN
+--------------------------------------------------
+ Bitmap Heap Scan on t1
+ Recheck Cond: (id = $3)
+ InitPlan 1 (returns $1)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_1
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
- InitPlan 2 (returns $1)
- -> Aggregate (cost=28.38..28.39 rows=1 width=4)
- -> Bitmap Heap Scan on t1 v_2 (cost=4.32..28.36 rows=9 width=4)
+ InitPlan 2 (returns $3)
+ -> Aggregate
+ -> Bitmap Heap Scan on t1 v_2
Recheck Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.32 rows=9 width=0)
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (id < 10)
- -> Bitmap Index Scan on t1_pkey (cost=0.00..4.26 rows=1 width=0)
- Index Cond: (id = $1)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (id = $3)
(16 rows)
-- full scan hint pattern test
QUERY PLAN
---------------------------------------
Nested Loop
+ Join Filter: (t1.id = t2.id)
-> Seq Scan on t1
Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using t2_pkey on t2
- Index Cond: (id = t1.id)
+ -> Seq Scan on t2
Filter: (ctid = '(1,1)'::tid)
(6 rows)
-> Bitmap Index Scan on t2_pkey
Index Cond: (id < 10)
-> Bitmap Heap Scan on t1
- Recheck Cond: ((id < 10) AND (id = t2.id))
+ Recheck Cond: ((id = t2.id) AND (id < 10))
Filter: (ctid = '(1,1)'::tid)
-> Bitmap Index Scan on t1_pkey
- Index Cond: ((id < 10) AND (id = t2.id))
+ Index Cond: ((id = t2.id) AND (id < 10))
(11 rows)
-- outer join test
-> Index Scan using t2_pkey on t2
(4 rows)
+-- Cannot work
/*+NestLoop(t1 t2)*/
EXPLAIN (COSTS false) SELECT * FROM t1 FULL OUTER JOIN t2 ON (t1.id = t2.id);
LOG: pg_hint_plan:
-> Seq Scan on t2
(5 rows)
--- inherite table test
+-- inheritance tables test
SET constraint_exclusion TO off;
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
- QUERY PLAN
------------------------------------------------------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-(25 rows)
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(19 rows)
SET constraint_exclusion TO on;
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
- QUERY PLAN
------------------------------------------------------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-(12 rows)
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(9 rows)
SET constraint_exclusion TO off;
/*+SeqScan(p1)*/
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c4 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-(20 rows)
-
-/*+IndexScan(p1)*/
-EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
-LOG: pg_hint_plan:
-used hint:
-IndexScan(p1)
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(19 rows)
+
+/*+IndexScan(p1)*/
+EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------
- Result
- -> Append
- -> Index Scan using p1_pkey on p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c1_pkey on p1_c1 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c2_pkey on p1_c2 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c3_pkey on p1_c3 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c4_pkey on p1_c4 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c1_c1_pkey on p1_c1_c1 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c1_c2_pkey on p1_c1_c2 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c3_c1_pkey on p1_c3_c1 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c3_c2_pkey on p1_c3_c2 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
-(29 rows)
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p1_pkey on p1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_pkey on p1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c2_pkey on p1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c3_pkey on p1_c3
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c4_pkey on p1_c4
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c1_pkey on p1_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c2_pkey on p1_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c3_c1_pkey on p1_c3_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c3_c2_pkey on p1_c3_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(28 rows)
/*+BitmapScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------
- Result
- -> Append
- -> Bitmap Heap Scan on p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c1 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c2 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c2_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c3 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c3_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c4 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c4_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c1_c1 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c1_c1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c1_c2 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c1_c2_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c3_c1 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c3_c1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c3_c2 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c3_c2_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
-(47 rows)
+ QUERY PLAN
+-------------------------------------------------------
+ Append
+ -> Bitmap Heap Scan on p1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c3
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c3_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c4
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c4_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c3_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c3_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c3_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c3_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+(46 rows)
/*+TidScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------
- Result
- -> Append
- -> Tid Scan on p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-(29 rows)
+ QUERY PLAN
+---------------------------------------------
+ Append
+ -> Tid Scan on p1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c3
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c4
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1_c2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c3_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c3_c2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+(28 rows)
SET constraint_exclusion TO on;
/*+SeqScan(p1)*/
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-(10 rows)
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(9 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------
- Result
- -> Append
- -> Index Scan using p1_pkey on p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c1_pkey on p1_c1 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c1_c1_pkey on p1_c1_c1 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using p1_c1_c2_pkey on p1_c1_c2 p1
- Index Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
-(14 rows)
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p1_pkey on p1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_pkey on p1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c1_pkey on p1_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c2_pkey on p1_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
/*+BitmapScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------
- Result
- -> Append
- -> Bitmap Heap Scan on p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c1 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c1_c1 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c1_c1_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
- -> Bitmap Heap Scan on p1_c1_c2 p1
- Recheck Cond: ((id >= 50) AND (id <= 51))
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on p1_c1_c2_pkey
- Index Cond: ((id >= 50) AND (id <= 51))
-(22 rows)
+ QUERY PLAN
+-------------------------------------------------------
+ Append
+ -> Bitmap Heap Scan on p1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+(21 rows)
/*+TidScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------
- Result
- -> Append
- -> Tid Scan on p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-(14 rows)
+ QUERY PLAN
+---------------------------------------------
+ Append
+ -> Tid Scan on p1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1_c2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+(13 rows)
SET constraint_exclusion TO off;
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
+ -> Seq Scan on p1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(30 rows)
+(25 rows)
SET constraint_exclusion TO on;
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(17 rows)
+(15 rows)
SET constraint_exclusion TO off;
/*+SeqScan(p1)*/
QUERY PLAN
-----------------------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
+ -> Seq Scan on p1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(30 rows)
+(25 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
- -> Sort
- Sort Key: public.p1.id
- -> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
+ Merge Cond: (p1.id = t1.id)
+ -> Merge Append
+ Sort Key: p1.id
+ -> Index Scan using p1_pkey on p1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_pkey on p1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c2_pkey on p1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c3_pkey on p1_c3
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c4_pkey on p1_c4
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c1_pkey on p1_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c2_pkey on p1_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c3_c1_pkey on p1_c3_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c3_c2_pkey on p1_c3_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(30 rows)
+(33 rows)
/*+BitmapScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c3
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c3_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c4
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c4_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c3_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c3_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c3_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c3_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(30 rows)
+(52 rows)
/*+TidScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------
+ QUERY PLAN
+---------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
+ -> Tid Scan on p1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c3
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c4
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
+ -> Tid Scan on p1_c1_c1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
+ -> Tid Scan on p1_c1_c2
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
+ -> Tid Scan on p1_c3_c1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
+ -> Tid Scan on p1_c3_c2
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(30 rows)
+(34 rows)
/*+NestLoop(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------
Nested Loop
- Join Filter: (public.p1.id = t1.id)
+ Join Filter: (p1.id = t1.id)
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
+ -> Seq Scan on p1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Materialize
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(29 rows)
+(24 rows)
/*+MergeJoin(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
+ -> Seq Scan on p1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(30 rows)
+(25 rows)
/*+HashJoin(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------
Hash Join
- Hash Cond: (public.p1.id = t1.id)
+ Hash Cond: (p1.id = t1.id)
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c2 p1
+ -> Seq Scan on p1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c3 p1
+ -> Seq Scan on p1_c3
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c4
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c3_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c4 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c3_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Hash
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(29 rows)
+(24 rows)
SET constraint_exclusion TO on;
/*+SeqScan(p1)*/
QUERY PLAN
-----------------------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(17 rows)
+(15 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
- -> Sort
- Sort Key: public.p1.id
- -> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
+ Merge Cond: (p1.id = t1.id)
+ -> Merge Append
+ Sort Key: p1.id
+ -> Index Scan using p1_pkey on p1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_pkey on p1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c1_pkey on p1_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p1_c1_c2_pkey on p1_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(17 rows)
+(18 rows)
/*+BitmapScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c1
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c1_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
+ -> Bitmap Heap Scan on p1_c1_c2
+ Recheck Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on p1_c1_c2_pkey
+ Index Cond: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(17 rows)
+(27 rows)
/*+TidScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
------------------------------------------------------------------------------------
+ QUERY PLAN
+---------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
- -> Seq Scan on p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
- Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
+ -> Tid Scan on p1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: ((id >= 50) AND (id <= 51))
+ -> Tid Scan on p1_c1_c1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
+ -> Tid Scan on p1_c1_c2
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(17 rows)
+(19 rows)
/*+NestLoop(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------------
Nested Loop
- Join Filter: (public.p1.id = t1.id)
+ Join Filter: (p1.id = t1.id)
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-> Materialize
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-(16 rows)
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(14 rows)
/*+MergeJoin(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------------
Merge Join
- Merge Cond: (public.p1.id = t1.id)
+ Merge Cond: (p1.id = t1.id)
-> Sort
- Sort Key: public.p1.id
+ Sort Key: p1.id
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-(17 rows)
+(15 rows)
/*+HashJoin(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------------------
Hash Join
- Hash Cond: (t1.id = public.p1.id)
+ Hash Cond: (t1.id = p1.id)
-> Index Scan using t1_pkey on t1
Index Cond: (id < 10)
-> Hash
-> Append
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Seq Scan on p1_c1 p1
+ -> Seq Scan on p1_c1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on p1_c1_c1 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
- -> Tid Scan on p1_c1_c2 p1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((id >= 50) AND (id <= 51))
-(16 rows)
+ -> Seq Scan on p1_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p1_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(14 rows)
SET constraint_exclusion TO off;
EXPLAIN (COSTS false) SELECT * FROM ONLY p1 WHERE id >= 50 AND id <= 51 AND p1.ctid = '(1,1)';
QUERY PLAN
-----------------------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(5 rows)
+ Index Cond: (id < 10)
+(6 rows)
/*+MergeJoin(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(5 rows)
+ Index Cond: (id < 10)
+(6 rows)
/*+MergeJoin(p1 t1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(5 rows)
+ Index Cond: (id < 10)
+(6 rows)
SET constraint_exclusion TO on;
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-----------------------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(5 rows)
+ Index Cond: (id < 10)
+(6 rows)
SET constraint_exclusion TO off;
/*+SeqScan(p1)*/
QUERY PLAN
-----------------------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(5 rows)
+ Index Cond: (id < 10)
+(6 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------
- Nested Loop
+ QUERY PLAN
+-------------------------------------------------
+ Merge Join
+ Merge Cond: (p1.id = t1.id)
-> Index Scan using p1_pkey on p1
Index Cond: ((id >= 50) AND (id <= 51))
Filter: (ctid = '(1,1)'::tid)
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(6 rows)
+ Index Cond: (id < 10)
+(7 rows)
/*+BitmapScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Bitmap Heap Scan on p1
Recheck Cond: ((id >= 50) AND (id <= 51))
Filter: (ctid = '(1,1)'::tid)
-> Bitmap Index Scan on p1_pkey
Index Cond: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(8 rows)
+ Index Cond: (id < 10)
+(9 rows)
/*+TidScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------
+ QUERY PLAN
+---------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Tid Scan on p1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(6 rows)
+ Index Cond: (id < 10)
+(7 rows)
SET constraint_exclusion TO on;
/*+SeqScan(p1)*/
QUERY PLAN
-----------------------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Seq Scan on p1
Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(5 rows)
+ Index Cond: (id < 10)
+(6 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------
- Nested Loop
+ QUERY PLAN
+-------------------------------------------------
+ Merge Join
+ Merge Cond: (p1.id = t1.id)
-> Index Scan using p1_pkey on p1
Index Cond: ((id >= 50) AND (id <= 51))
Filter: (ctid = '(1,1)'::tid)
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(6 rows)
+ Index Cond: (id < 10)
+(7 rows)
/*+BitmapScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
QUERY PLAN
-------------------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Bitmap Heap Scan on p1
Recheck Cond: ((id >= 50) AND (id <= 51))
Filter: (ctid = '(1,1)'::tid)
-> Bitmap Index Scan on p1_pkey
Index Cond: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(8 rows)
+ Index Cond: (id < 10)
+(9 rows)
/*+TidScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM ONLY p1, t1 WHERE p1.id >= 50 AND p1.id <= 51 AND p1.ctid = '(1,1)' AND p1.id = t1.id AND t1.id < 10;
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------
+ QUERY PLAN
+---------------------------------------------
Nested Loop
+ Join Filter: (p1.id = t1.id)
-> Tid Scan on p1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((id >= 50) AND (id <= 51))
-> Index Scan using t1_pkey on t1
- Index Cond: ((id < 10) AND (id = p1.id))
-(6 rows)
-
+ Index Cond: (id < 10)
+(7 rows)
+
-- quote test
/*+SeqScan("""t1 ) ")IndexScan("t 2 """)HashJoin("""t1 ) "T3"t 2 """)Leading("""t1 ) "T3"t 2 """)Set(application_name"a a a"" a A")*/
EXPLAIN (COSTS false) SELECT * FROM t1 """t1 ) ", t2 "t 2 """, t3 "T3" WHERE """t1 ) ".id = "t 2 """.id AND """t1 ) ".id = "T3".id;
-- duplicate hint test
/*+SeqScan(t1)SeqScan(t2)IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)*/
EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id AND t1.ctid = '(1,1)' AND t2.ctid = '(1,1)';
-INFO: hint syntax error at or near "SeqScan(t1)SeqScan(t2)IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "SeqScan(t1)SeqScan(t2)IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "SeqScan(t2)IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "SeqScan(t2)IndexScan(t1)IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "IndexScan(t2)BitmapScan(t1)BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "BitmapScan(t2)TidScan(t1)TidScan(t2)HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "HashJoin(t1 t2)NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict join method hint.
-INFO: hint syntax error at or near "NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "NestLoop(t2 t1)MergeJoin(t1 t2)Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict join method hint.
-INFO: hint syntax error at or near "Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
-DETAIL: Conflict leading hint.
-INFO: hint syntax error at or near "Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+INFO: pg_hint_plan: hint syntax error at or near "Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
DETAIL: Conflict set hint.
+INFO: pg_hint_plan: hint syntax error at or near "Leading(t1 t2)Leading(t2 t1)Set(enable_seqscan off)Set(enable_mergejoin on)Set(enable_seqscan on)"
+DETAIL: Conflict leading hint.
LOG: pg_hint_plan:
used hint:
TidScan(t1)
) v1_1(id), c1_1 WHERE t1_1.id = t2_1.id AND t2_1.id = t3_1.id AND t2_1.id = v1_1.id AND v1_1.id = c1_1.id AND t1_1.id = (
SELECT max(t1_4.id) FROM t1 t1_4, t2 t2_4, t3 t3_4 WHERE t1_4.id = t2_4.id AND t2_4.id = t3_4.id
);
- QUERY PLAN
--------------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
Merge Cond: (t1_5.id = t3_5.id)
-> Merge Join
Merge Cond: (t1_5.id = t2_5.id)
- -> Index Scan using t1_pkey on t1 t1_5
- -> Index Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
Merge Cond: (t1_2.id = t3_2.id)
-> Merge Join
Merge Cond: (t1_2.id = t2_2.id)
- -> Index Scan using t1_pkey on t1 t1_2
- -> Index Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
Merge Cond: (t1_4.id = t3_4.id)
-> Merge Join
Merge Cond: (t1_4.id = t2_4.id)
- -> Index Scan using t1_pkey on t1 t1_4
- -> Index Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
-> Sort
Sort Key: t3_4.id
-> Seq Scan on t3 t3_4
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t1_pkey on t1 t1_1
+ -> Index Only Scan using t1_pkey on t1 t1_1
Index Cond: (id = $2)
- -> Seq Scan on t3 t3_1
- Filter: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_1
- Index Cond: (id = $2)
- -> Index Scan using t1_pkey on t1 t1_3
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $2)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $2)
+ -> Index Only Scan using t1_pkey on t1 t1_3
Index Cond: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_3
+ -> Index Only Scan using t2_pkey on t2 t2_3
Index Cond: (id = $2)
-> Seq Scan on t3 t3_3
Filter: (id = $2)
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
-> Merge Join
Merge Cond: (t1_5.id = t3_5.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_5
- -> Index Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
Index Cond: (id = t2_5.id)
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
- InitPlan 2 (returns $2)
+ InitPlan 2 (returns $3)
-> Aggregate
-> Merge Join
Merge Cond: (t1_2.id = t3_2.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_2
- -> Index Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
Index Cond: (id = t2_2.id)
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
- InitPlan 3 (returns $3)
+ InitPlan 3 (returns $5)
-> Aggregate
-> Merge Join
Merge Cond: (t1_4.id = t3_4.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_4
- -> Index Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
Index Cond: (id = t2_4.id)
-> Sort
Sort Key: t3_4.id
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_1
- Index Cond: (id = $3)
- -> Seq Scan on t3 t3_1
- Filter: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_1
- Index Cond: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_3
- Index Cond: (id = $3)
- -> Index Scan using t2_pkey on t2 t2_3
- Index Cond: (id = $3)
+ -> Index Only Scan using t1_pkey on t1 t1_1
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $5)
+ -> Index Only Scan using t1_pkey on t1 t1_3
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $5)
-> Seq Scan on t3 t3_3
- Filter: (id = $3)
+ Filter: (id = $5)
-> CTE Scan on c1_1
- Filter: (id = $3)
+ Filter: (id = $5)
(53 rows)
/*+HashJoin(t1_1 t3_1)MergeJoin(t1_3 t3_3)NestLoop(t1_2 t2_2)NestLoop(t1_4 t2_4)NestLoop(t1_5 t2_5)Leading(a t1_1 t1_2 t1_4 t1_5)*/
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
-> Merge Join
Merge Cond: (t1_5.id = t3_5.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_5
- -> Index Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
Index Cond: (id = t2_5.id)
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
- InitPlan 2 (returns $2)
+ InitPlan 2 (returns $3)
-> Aggregate
-> Merge Join
Merge Cond: (t1_2.id = t3_2.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_2
- -> Index Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
Index Cond: (id = t2_2.id)
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
- InitPlan 3 (returns $3)
+ InitPlan 3 (returns $5)
-> Aggregate
-> Merge Join
Merge Cond: (t1_4.id = t3_4.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_4
- -> Index Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
Index Cond: (id = t2_4.id)
-> Sort
Sort Key: t3_4.id
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_1
- Index Cond: (id = $3)
- -> Seq Scan on t3 t3_1
- Filter: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_1
- Index Cond: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_3
- Index Cond: (id = $3)
- -> Index Scan using t2_pkey on t2 t2_3
- Index Cond: (id = $3)
+ -> Index Only Scan using t1_pkey on t1 t1_1
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $5)
+ -> Index Only Scan using t1_pkey on t1 t1_3
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $5)
-> Seq Scan on t3 t3_3
- Filter: (id = $3)
+ Filter: (id = $5)
-> CTE Scan on c1_1
- Filter: (id = $3)
+ Filter: (id = $5)
(53 rows)
/*+HashJoin(t1_1 t3_1)MergeJoin(t1_3 t3_3)NestLoop(t1_2 t2_2)NestLoop(t1_4 t2_4)NestLoop(t1_5 t2_5)Leading(a t3_2 t3_5 t2_2 c1_1 t3_4 t3_3 t2_3 t2_4 t1_3 t2_5 t1_2 t3_1 t1_4 t2_1 t1_5 t1_1)*/
);
LOG: pg_hint_plan:
used hint:
+HashJoin(t1_1 t3_1)
+NestLoop(t1_2 t2_2)
+MergeJoin(t1_3 t3_3)
+NestLoop(t1_4 t2_4)
+NestLoop(t1_5 t2_5)
+not used hint:
Leading(a t3_2 t3_5 t2_2 c1_1 t3_4 t3_3 t2_3 t2_4 t1_3 t2_5 t1_2 t3_1 t1_4 t2_1 t1_5 t1_1)
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Nested Loop
+ CTE c1_1
+ -> Aggregate
+ -> Merge Join
+ Merge Cond: (t1_5.id = t3_5.id)
+ -> Nested Loop
+ -> Index Only Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
+ Index Cond: (id = t2_5.id)
+ -> Sort
+ Sort Key: t3_5.id
+ -> Seq Scan on t3 t3_5
+ InitPlan 2 (returns $3)
+ -> Aggregate
+ -> Merge Join
+ Merge Cond: (t1_2.id = t3_2.id)
+ -> Nested Loop
+ -> Index Only Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ Index Cond: (id = t2_2.id)
+ -> Sort
+ Sort Key: t3_2.id
+ -> Seq Scan on t3 t3_2
+ InitPlan 3 (returns $5)
+ -> Aggregate
+ -> Merge Join
+ Merge Cond: (t1_4.id = t3_4.id)
+ -> Nested Loop
+ -> Index Only Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
+ Index Cond: (id = t2_4.id)
+ -> Sort
+ Sort Key: t3_4.id
+ -> Seq Scan on t3 t3_4
+ -> Nested Loop
+ -> Nested Loop
+ -> Nested Loop
+ -> Nested Loop
+ -> Nested Loop
+ -> Index Only Scan using t1_pkey on t1 t1_1
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $5)
+ -> Index Only Scan using t1_pkey on t1 t1_3
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_3
+ Filter: (id = $5)
+ -> CTE Scan on c1_1
+ Filter: (id = $5)
+(53 rows)
+
+/*+HashJoin(t1_1 t3_1)MergeJoin(t1_3 t3_3)NestLoop(t1_2 t2_2)NestLoop(t1_4 t2_4)NestLoop(t1_5 t2_5)Leading(t3_5 t2_5 t1_5)Leading(t3_2 t2_2 t1_2)Leading(t3_4 t2_4 t1_4)Leading(c1_1 t3_3 t2_3 t1_3 t3_1 t2_1 t1_1)*/
+EXPLAIN (COSTS false)
+WITH c1_1(id) AS (
+SELECT max(t1_5.id) FROM t1 t1_5, t2 t2_5, t3 t3_5 WHERE t1_5.id = t2_5.id AND t2_5.id = t3_5.id
+)
+SELECT t1_1.id, (
+SELECT max(t1_2.id) FROM t1 t1_2, t2 t2_2, t3 t3_2 WHERE t1_2.id = t2_2.id AND t2_2.id = t3_2.id
+) FROM t1 t1_1, t2 t2_1, t3 t3_1, (
+SELECT t1_3.id FROM t1 t1_3, t2 t2_3, t3 t3_3 WHERE t1_3.id = t2_3.id AND t2_3.id = t3_3.id
+) v1_1(id), c1_1 WHERE t1_1.id = t2_1.id AND t2_1.id = t3_1.id AND t2_1.id = v1_1.id AND v1_1.id = c1_1.id AND t1_1.id = (
+SELECT max(t1_4.id) FROM t1 t1_4, t2 t2_4, t3 t3_4 WHERE t1_4.id = t2_4.id AND t2_4.id = t3_4.id
+);
+LOG: pg_hint_plan:
+used hint:
+Leading(t3_5 t2_5 t1_5)
+Leading(t3_2 t2_2 t1_2)
+Leading(t3_4 t2_4 t1_4)
+Leading(c1_1 t3_3 t2_3 t1_3 t3_1 t2_1 t1_1)
not used hint:
HashJoin(t1_1 t3_1)
NestLoop(t1_2 t2_2)
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
Merge Cond: (t2_5.id = t1_5.id)
-> Merge Join
Merge Cond: (t2_5.id = t3_5.id)
- -> Index Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
- -> Index Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
InitPlan 2 (returns $1)
-> Aggregate
-> Merge Join
Merge Cond: (t2_2.id = t1_2.id)
-> Merge Join
Merge Cond: (t2_2.id = t3_2.id)
- -> Index Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
- -> Index Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
InitPlan 3 (returns $2)
-> Aggregate
-> Merge Join
Merge Cond: (t2_4.id = t1_4.id)
-> Merge Join
Merge Cond: (t2_4.id = t3_4.id)
- -> Index Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
-> Sort
Sort Key: t3_4.id
-> Seq Scan on t3 t3_4
- -> Index Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
-> Nested Loop
-> Nested Loop
-> Nested Loop
Filter: (id = $2)
-> CTE Scan on c1_1
Filter: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_3
+ -> Index Only Scan using t2_pkey on t2 t2_3
Index Cond: (id = $2)
- -> Index Scan using t1_pkey on t1 t1_3
+ -> Index Only Scan using t1_pkey on t1 t1_3
Index Cond: (id = $2)
-> Seq Scan on t3 t3_1
Filter: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_1
+ -> Index Only Scan using t2_pkey on t2 t2_1
Index Cond: (id = $2)
- -> Index Scan using t1_pkey on t1 t1_1
+ -> Index Only Scan using t1_pkey on t1 t1_1
Index Cond: (id = $2)
(53 rows)
) v1_1(id), c1_1 WHERE t1_1.id = t2_1.id AND t2_1.id = t3_1.id AND t2_1.id = v1_1.id AND v1_1.id = c1_1.id AND t1_1.id = (
SELECT max(t1_4.id) FROM t1 t1_4, t2 t2_4, t3 t3_4 WHERE t1_4.id = t2_4.id AND t2_4.id = t3_4.id
);
- QUERY PLAN
----------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
Merge Cond: (t1_5.id = t3_5.id)
-> Merge Join
Merge Cond: (t1_5.id = t2_5.id)
- -> Index Scan using t1_pkey on t1 t1_5
- -> Index Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
Merge Cond: (t1_2.id = t3_2.id)
-> Merge Join
Merge Cond: (t1_2.id = t2_2.id)
- -> Index Scan using t1_pkey on t1 t1_2
- -> Index Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
Merge Cond: (t1_4.id = t3_4.id)
-> Merge Join
Merge Cond: (t1_4.id = t2_4.id)
- -> Index Scan using t1_pkey on t1 t1_4
- -> Index Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
-> Sort
Sort Key: t3_4.id
-> Seq Scan on t3 t3_4
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t1_pkey on t1 t1_1
+ -> Index Only Scan using t1_pkey on t1 t1_1
Index Cond: (id = $2)
- -> Seq Scan on t3 t3_1
- Filter: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_1
- Index Cond: (id = $2)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $2)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $2)
-> Nested Loop
-> Nested Loop
- -> Index Scan using t1_pkey on t1 t1_3
+ -> Index Only Scan using t1_pkey on t1 t1_3
Index Cond: (id = $2)
- -> Seq Scan on t3 t3_3
- Filter: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_3
- Index Cond: (id = $2)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $2)
+ -> Seq Scan on t3 t3_3
+ Filter: (id = $2)
-> CTE Scan on c1_1
Filter: (id = $2)
(53 rows)
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
-> Merge Join
Merge Cond: (t1_5.id = t3_5.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_5
- -> Index Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
Index Cond: (id = t2_5.id)
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
- InitPlan 2 (returns $2)
+ InitPlan 2 (returns $3)
-> Aggregate
-> Merge Join
Merge Cond: (t1_2.id = t3_2.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_2
- -> Index Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
Index Cond: (id = t2_2.id)
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
- InitPlan 3 (returns $3)
+ InitPlan 3 (returns $5)
-> Aggregate
-> Merge Join
Merge Cond: (t1_4.id = t3_4.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_4
- -> Index Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
Index Cond: (id = t2_4.id)
-> Sort
Sort Key: t3_4.id
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_1
- Index Cond: (id = $3)
- -> Seq Scan on t3 t3_1
- Filter: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_1
- Index Cond: (id = $3)
+ -> Index Only Scan using t1_pkey on t1 t1_1
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $5)
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_3
- Index Cond: (id = $3)
- -> Seq Scan on t3 t3_3
- Filter: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_3
- Index Cond: (id = $3)
+ -> Index Only Scan using t1_pkey on t1 t1_3
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_3
+ Filter: (id = $5)
-> CTE Scan on c1_1
- Filter: (id = $3)
+ Filter: (id = $5)
(53 rows)
/*+HashJoin(t1_1 t3_1)MergeJoin(t1_3 t3_3)NestLoop(t1_2 t2_2)NestLoop(t1_4 t2_4)NestLoop(t1_5 t2_5)Leading(a t1_1 t1_2 t1_4 t1_5)*/
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
-> Merge Join
Merge Cond: (t1_5.id = t3_5.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_5
- -> Index Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
Index Cond: (id = t2_5.id)
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
- InitPlan 2 (returns $2)
+ InitPlan 2 (returns $3)
-> Aggregate
-> Merge Join
Merge Cond: (t1_2.id = t3_2.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_2
- -> Index Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
Index Cond: (id = t2_2.id)
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
- InitPlan 3 (returns $3)
+ InitPlan 3 (returns $5)
-> Aggregate
-> Merge Join
Merge Cond: (t1_4.id = t3_4.id)
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_4
- -> Index Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
Index Cond: (id = t2_4.id)
-> Sort
Sort Key: t3_4.id
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_1
- Index Cond: (id = $3)
- -> Seq Scan on t3 t3_1
- Filter: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_1
- Index Cond: (id = $3)
+ -> Index Only Scan using t1_pkey on t1 t1_1
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $5)
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_3
- Index Cond: (id = $3)
- -> Seq Scan on t3 t3_3
- Filter: (id = $3)
- -> Index Scan using t1_pkey on t1 t1_3
- Index Cond: (id = $3)
+ -> Index Only Scan using t1_pkey on t1 t1_3
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_3
+ Filter: (id = $5)
-> CTE Scan on c1_1
- Filter: (id = $3)
+ Filter: (id = $5)
(53 rows)
/*+HashJoin(t1_1 t3_1)MergeJoin(t1_3 t3_3)NestLoop(t1_2 t2_2)NestLoop(t1_4 t2_4)NestLoop(t1_5 t2_5)Leading(a t3_2 t3_5 t2_2 c1_1 t3_4 t3_3 t2_3 t2_4 t1_3 t2_5 t1_2 t3_1 t1_4 t2_1 t1_5 t1_1)*/
);
LOG: pg_hint_plan:
used hint:
+HashJoin(t1_1 t3_1)
+NestLoop(t1_2 t2_2)
+MergeJoin(t1_3 t3_3)
+NestLoop(t1_4 t2_4)
+NestLoop(t1_5 t2_5)
+not used hint:
Leading(a t3_2 t3_5 t2_2 c1_1 t3_4 t3_3 t2_3 t2_4 t1_3 t2_5 t1_2 t3_1 t1_4 t2_1 t1_5 t1_1)
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------------------
+ Nested Loop
+ CTE c1_1
+ -> Aggregate
+ -> Merge Join
+ Merge Cond: (t1_5.id = t3_5.id)
+ -> Nested Loop
+ -> Index Only Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
+ Index Cond: (id = t2_5.id)
+ -> Sort
+ Sort Key: t3_5.id
+ -> Seq Scan on t3 t3_5
+ InitPlan 2 (returns $3)
+ -> Aggregate
+ -> Merge Join
+ Merge Cond: (t1_2.id = t3_2.id)
+ -> Nested Loop
+ -> Index Only Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ Index Cond: (id = t2_2.id)
+ -> Sort
+ Sort Key: t3_2.id
+ -> Seq Scan on t3 t3_2
+ InitPlan 3 (returns $5)
+ -> Aggregate
+ -> Merge Join
+ Merge Cond: (t1_4.id = t3_4.id)
+ -> Nested Loop
+ -> Index Only Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
+ Index Cond: (id = t2_4.id)
+ -> Sort
+ Sort Key: t3_4.id
+ -> Seq Scan on t3 t3_4
+ -> Nested Loop
+ -> Nested Loop
+ -> Nested Loop
+ -> Index Only Scan using t1_pkey on t1 t1_1
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_1
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_1
+ Filter: (id = $5)
+ -> Nested Loop
+ -> Nested Loop
+ -> Index Only Scan using t1_pkey on t1 t1_3
+ Index Cond: (id = $5)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $5)
+ -> Seq Scan on t3 t3_3
+ Filter: (id = $5)
+ -> CTE Scan on c1_1
+ Filter: (id = $5)
+(53 rows)
+
+/*+HashJoin(t1_1 t3_1)MergeJoin(t1_3 t3_3)NestLoop(t1_2 t2_2)NestLoop(t1_4 t2_4)NestLoop(t1_5 t2_5)Leading(t3_5 t2_5 t1_5)Leading(t3_2 t2_2 t1_2)Leading(t3_4 t2_4 t1_4)Leading(c1_1 t3_3 t2_3 t1_3 t3_1 t2_1 t1_1)*/
+EXPLAIN (COSTS false)
+WITH c1_1(id) AS (
+SELECT max(t1_5.id) FROM t1 t1_5, t2 t2_5, t3 t3_5 WHERE t1_5.id = t2_5.id AND t2_5.id = t3_5.id
+)
+SELECT t1_1.id, (
+SELECT max(t1_2.id) FROM t1 t1_2, t2 t2_2, t3 t3_2 WHERE t1_2.id = t2_2.id AND t2_2.id = t3_2.id
+) FROM t1 t1_1, t2 t2_1, t3 t3_1, (
+SELECT t1_3.id FROM t1 t1_3, t2 t2_3, t3 t3_3 WHERE t1_3.id = t2_3.id AND t2_3.id = t3_3.id
+) v1_1(id), c1_1 WHERE t1_1.id = t2_1.id AND t2_1.id = t3_1.id AND t2_1.id = v1_1.id AND v1_1.id = c1_1.id AND t1_1.id = (
+SELECT max(t1_4.id) FROM t1 t1_4, t2 t2_4, t3 t3_4 WHERE t1_4.id = t2_4.id AND t2_4.id = t3_4.id
+);
+LOG: pg_hint_plan:
+used hint:
+MergeJoin(t1_3 t3_3)
+Leading(t3_5 t2_5 t1_5)
+Leading(t3_2 t2_2 t1_2)
+Leading(t3_4 t2_4 t1_4)
+Leading(c1_1 t3_3 t2_3 t1_3 t3_1 t2_1 t1_1)
not used hint:
HashJoin(t1_1 t3_1)
NestLoop(t1_2 t2_2)
-MergeJoin(t1_3 t3_3)
NestLoop(t1_4 t2_4)
NestLoop(t1_5 t2_5)
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------------
Nested Loop
CTE c1_1
-> Aggregate
Merge Cond: (t2_5.id = t1_5.id)
-> Merge Join
Merge Cond: (t2_5.id = t3_5.id)
- -> Index Scan using t2_pkey on t2 t2_5
+ -> Index Only Scan using t2_pkey on t2 t2_5
-> Sort
Sort Key: t3_5.id
-> Seq Scan on t3 t3_5
- -> Index Scan using t1_pkey on t1 t1_5
+ -> Index Only Scan using t1_pkey on t1 t1_5
InitPlan 2 (returns $1)
-> Aggregate
-> Merge Join
Merge Cond: (t2_2.id = t1_2.id)
-> Merge Join
Merge Cond: (t2_2.id = t3_2.id)
- -> Index Scan using t2_pkey on t2 t2_2
+ -> Index Only Scan using t2_pkey on t2 t2_2
-> Sort
Sort Key: t3_2.id
-> Seq Scan on t3 t3_2
- -> Index Scan using t1_pkey on t1 t1_2
+ -> Index Only Scan using t1_pkey on t1 t1_2
InitPlan 3 (returns $2)
-> Aggregate
-> Merge Join
Merge Cond: (t2_4.id = t1_4.id)
-> Merge Join
Merge Cond: (t2_4.id = t3_4.id)
- -> Index Scan using t2_pkey on t2 t2_4
+ -> Index Only Scan using t2_pkey on t2 t2_4
-> Sort
Sort Key: t3_4.id
-> Seq Scan on t3 t3_4
- -> Index Scan using t1_pkey on t1 t1_4
+ -> Index Only Scan using t1_pkey on t1 t1_4
-> Nested Loop
-> Nested Loop
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> Index Scan using t2_pkey on t2 t2_3
+ -> Index Only Scan using t1_pkey on t1 t1_3
Index Cond: (id = $2)
- -> Seq Scan on t3 t3_3
- Filter: (id = $2)
- -> Index Scan using t1_pkey on t1 t1_3
- Index Cond: (id = $2)
+ -> Index Only Scan using t2_pkey on t2 t2_3
+ Index Cond: (id = $2)
+ -> Seq Scan on t3 t3_3
+ Filter: (id = $2)
-> CTE Scan on c1_1
Filter: (id = $2)
-> Seq Scan on t3 t3_1
Filter: (id = $2)
- -> Index Scan using t2_pkey on t2 t2_1
+ -> Index Only Scan using t2_pkey on t2 t2_1
Index Cond: (id = $2)
- -> Index Scan using t1_pkey on t1 t1_1
+ -> Index Only Scan using t1_pkey on t1 t1_1
Index Cond: (id = $2)
(53 rows)
-- ambigous error
EXPLAIN (COSTS false) SELECT * FROM t1, s0.t1, t2 WHERE public.t1.id = s0.t1.id AND public.t1.id = t2.id;
- QUERY PLAN
------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------
Merge Join
- Merge Cond: (public.t1.id = t2.id)
+ Merge Cond: (t1.id = t2.id)
-> Merge Join
- Merge Cond: (public.t1.id = s0.t1.id)
- -> Index Scan using t1_pkey on t1
+ Merge Cond: (t1.id = t1_1.id)
-> Index Scan using t1_pkey on t1
+ -> Index Scan using t1_pkey on t1 t1_1
-> Index Scan using t2_pkey on t2
(7 rows)
/*+NestLoop(t1 t2)*/
EXPLAIN (COSTS false) SELECT * FROM t1, s0.t1, t2 WHERE public.t1.id = s0.t1.id AND public.t1.id = t2.id;
-INFO: hint syntax error at or near "NestLoop(t1 t2)"
+INFO: pg_hint_plan: hint syntax error at or near "NestLoop(t1 t2)"
DETAIL: Relation name "t1" is ambiguous.
LOG: pg_hint_plan:
used hint:
error hint:
NestLoop(t1 t2)
- QUERY PLAN
------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------
Merge Join
- Merge Cond: (public.t1.id = t2.id)
+ Merge Cond: (t1.id = t2.id)
-> Merge Join
- Merge Cond: (public.t1.id = s0.t1.id)
- -> Index Scan using t1_pkey on t1
+ Merge Cond: (t1.id = t1_1.id)
-> Index Scan using t1_pkey on t1
+ -> Index Scan using t1_pkey on t1 t1_1
-> Index Scan using t2_pkey on t2
(7 rows)
/*+Leading(t1 t2 t1)*/
EXPLAIN (COSTS false) SELECT * FROM t1, s0.t1, t2 WHERE public.t1.id = s0.t1.id AND public.t1.id = t2.id;
-INFO: hint syntax error at or near "Leading(t1 t2 t1)"
+INFO: pg_hint_plan: hint syntax error at or near "Leading(t1 t2 t1)"
DETAIL: Relation name "t1" is ambiguous.
LOG: pg_hint_plan:
used hint:
not used hint:
-Leading(t1 t2 t1)
duplication hint:
error hint:
+Leading(t1 t2 t1)
- QUERY PLAN
------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------
Merge Join
- Merge Cond: (public.t1.id = t2.id)
+ Merge Cond: (t1.id = t2.id)
-> Merge Join
- Merge Cond: (public.t1.id = s0.t1.id)
- -> Index Scan using t1_pkey on t1
+ Merge Cond: (t1.id = t1_1.id)
-> Index Scan using t1_pkey on t1
+ -> Index Scan using t1_pkey on t1 t1_1
-> Index Scan using t2_pkey on t2
(7 rows)
+-- identifier length test
+EXPLAIN (COSTS false) SELECT * FROM t1 "123456789012345678901234567890123456789012345678901234567890123" JOIN t2 ON ("123456789012345678901234567890123456789012345678901234567890123".id = t2.id) JOIN t3 ON (t2.id = t3.id);
+ QUERY PLAN
+--------------------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: ("123456789012345678901234567890123456789012345678901234567890123".id = t3.id)
+ -> Merge Join
+ Merge Cond: ("123456789012345678901234567890123456789012345678901234567890123".id = t2.id)
+ -> Index Scan using t1_pkey on t1 "123456789012345678901234567890123456789012345678901234567890123"
+ -> Index Scan using t2_pkey on t2
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+(9 rows)
+
+/*+
+Leading(123456789012345678901234567890123456789012345678901234567890123 t2 t3)
+SeqScan(123456789012345678901234567890123456789012345678901234567890123)
+MergeJoin(123456789012345678901234567890123456789012345678901234567890123 t2)
+Set(123456789012345678901234567890123456789012345678901234567890123 1)
+*/
+EXPLAIN (COSTS false) SELECT * FROM t1 "123456789012345678901234567890123456789012345678901234567890123" JOIN t2 ON ("123456789012345678901234567890123456789012345678901234567890123".id = t2.id) JOIN t3 ON (t2.id = t3.id);
+INFO: unrecognized configuration parameter "123456789012345678901234567890123456789012345678901234567890123"
+LOG: pg_hint_plan:
+used hint:
+SeqScan(123456789012345678901234567890123456789012345678901234567890123)
+MergeJoin(123456789012345678901234567890123456789012345678901234567890123 t2)
+Leading(123456789012345678901234567890123456789012345678901234567890123 t2 t3)
+not used hint:
+duplication hint:
+error hint:
+Set(123456789012345678901234567890123456789012345678901234567890123 1)
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: ("123456789012345678901234567890123456789012345678901234567890123".id = t3.id)
+ -> Merge Join
+ Merge Cond: (t2.id = "123456789012345678901234567890123456789012345678901234567890123".id)
+ -> Index Scan using t2_pkey on t2
+ -> Sort
+ Sort Key: "123456789012345678901234567890123456789012345678901234567890123".id
+ -> Seq Scan on t1 "123456789012345678901234567890123456789012345678901234567890123"
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+(11 rows)
+
+/*+
+Leading(1234567890123456789012345678901234567890123456789012345678901234 t2 t3)
+SeqScan(1234567890123456789012345678901234567890123456789012345678901234)
+MergeJoin(1234567890123456789012345678901234567890123456789012345678901234 t2)
+Set(1234567890123456789012345678901234567890123456789012345678901234 1)
+Set(cursor_tuple_fraction 0.1234567890123456789012345678901234567890123456789012345678901234)
+*/
+EXPLAIN (COSTS false) SELECT * FROM t1 "1234567890123456789012345678901234567890123456789012345678901234" JOIN t2 ON ("1234567890123456789012345678901234567890123456789012345678901234".id = t2.id) JOIN t3 ON (t2.id = t3.id);
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+INFO: unrecognized configuration parameter "123456789012345678901234567890123456789012345678901234567890123"
+LOG: pg_hint_plan:
+used hint:
+SeqScan(123456789012345678901234567890123456789012345678901234567890123)
+MergeJoin(123456789012345678901234567890123456789012345678901234567890123 t2)
+Leading(123456789012345678901234567890123456789012345678901234567890123 t2 t3)
+Set(cursor_tuple_fraction 0.1234567890123456789012345678901234567890123456789012345678901234)
+not used hint:
+duplication hint:
+error hint:
+Set(123456789012345678901234567890123456789012345678901234567890123 1)
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: ("123456789012345678901234567890123456789012345678901234567890123".id = t3.id)
+ -> Merge Join
+ Merge Cond: (t2.id = "123456789012345678901234567890123456789012345678901234567890123".id)
+ -> Index Scan using t2_pkey on t2
+ -> Sort
+ Sort Key: "123456789012345678901234567890123456789012345678901234567890123".id
+ -> Seq Scan on t1 "123456789012345678901234567890123456789012345678901234567890123"
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+(11 rows)
+
+SET "123456789012345678901234567890123456789012345678901234567890123" TO 1;
+ERROR: unrecognized configuration parameter "123456789012345678901234567890123456789012345678901234567890123"
+SET "1234567890123456789012345678901234567890123456789012345678901234" TO 1;
+NOTICE: identifier "1234567890123456789012345678901234567890123456789012345678901234" will be truncated to "123456789012345678901234567890123456789012345678901234567890123"
+ERROR: unrecognized configuration parameter "123456789012345678901234567890123456789012345678901234567890123"
+SET cursor_tuple_fraction TO 1234567890123456789012345678901234567890123456789012345678901234;
+ERROR: 1.23457e+63 is outside the valid range for parameter "cursor_tuple_fraction" (0 .. 1)
+-- multi error
+/*+ Set(enable_seqscan 100)Set(seq_page_cost on)*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id;
+INFO: parameter "enable_seqscan" requires a Boolean value
+INFO: parameter "seq_page_cost" requires a numeric value
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+Set(enable_seqscan 100)
+Set(seq_page_cost on)
+
+ QUERY PLAN
+--------------------------------------
+ Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+(4 rows)
+
+-- debug log of candidate index to use IndexScan
+EXPLAIN (COSTS false) SELECT * FROM t5 WHERE t5.id = 1;
+ QUERY PLAN
+----------------------------------------------------------------------------------------
+ Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+IndexScan(t5 t5_id2)*/
+EXPLAIN (COSTS false) SELECT * FROM t5 WHERE t5.id = 1;
+LOG: available indexes for IndexScan(t5): t5_id2
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t5 t5_id2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------
+ Index Scan using t5_id2 on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+IndexScan(t5 no_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM t5 WHERE t5.id = 1;
+LOG: available indexes for IndexScan(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t5 no_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+IndexScan(t5 t5_id1 t5_id2)*/
+EXPLAIN (COSTS false) SELECT * FROM t5 WHERE t5.id = 1;
+LOG: available indexes for IndexScan(t5): t5_id2 t5_id1
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t5 t5_id1 t5_id2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------
+ Index Scan using t5_id2 on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+IndexScan(t5 no_exist t5_id2)*/
+EXPLAIN (COSTS false) SELECT * FROM t5 WHERE t5.id = 1;
+LOG: available indexes for IndexScan(t5): t5_id2
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t5 no_exist t5_id2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------
+ Index Scan using t5_id2 on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+IndexScan(t5 no_exist5 no_exist2)*/
+EXPLAIN (COSTS false) SELECT * FROM t5 WHERE t5.id = 1;
+LOG: available indexes for IndexScan(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t5 no_exist5 no_exist2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+-- outer inner
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+/*+Leading((t1))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+INFO: pg_hint_plan: hint syntax error at or near "Leading((t1))"
+DETAIL: Leading hint requires two sets of relations when parentheses nests.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+Leading((t1))
+
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+/*+Leading((t1 t2))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading((t1 t2))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+/*+Leading((t1 t2 t3))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+INFO: pg_hint_plan: hint syntax error at or near "Leading((t1 t2 t3))"
+DETAIL: Leading hint requires two sets of relations when parentheses nests.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+Leading((t1 t2 t3))
+
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------
+ Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(6 rows)
+
+/*+Leading((t1 t2))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2 WHERE t1.id = t2.id AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading((t1 t2))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------
+ Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+(6 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+/*+Leading(((t1 t2) t3))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------------------
+ Nested Loop
+ -> Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Index Scan using t3_pkey on t3
+ -> Materialize
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t2_pkey on t2
+ Index Cond: (id = t1.id)
+(14 rows)
+
+/*+Leading((((t1 t2) t3) t4))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading((((t1 t2) t3) t4))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Nested Loop
+ -> Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+ -> Index Scan using t4_pkey on t4
+ Index Cond: (id = t3.id)
+(12 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+/*+Leading(((t1 t2) t3))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+/*+Leading((t1 (t2 t3)))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading((t1 (t2 t3)))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.val = t3.val)
+ -> Seq Scan on t2
+ -> Hash
+ -> Seq Scan on t3
+(10 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------------------
+ Nested Loop
+ -> Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Index Scan using t3_pkey on t3
+ -> Materialize
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t2_pkey on t2
+ Index Cond: (id = t1.id)
+(14 rows)
+
+/*+Leading(((t1 t2) (t3 t4)))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) (t3 t4)))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Index Scan using t3_pkey on t3
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+(14 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < ( SELECT t1_2.id FROM t1 t1_2, t2 t2_2 WHERE t1_2.id = t2_2.id AND t2_2.val > 100 ORDER BY t1_2.id LIMIT 1);
+ QUERY PLAN
+--------------------------------------------------------------------
+ Hash Join
+ Hash Cond: (t2.val = t3.val)
+ InitPlan 1 (returns $1)
+ -> Limit
+ -> Sort
+ Sort Key: t1_2.id
+ -> Nested Loop
+ -> Index Scan using t2_val on t2 t2_2
+ Index Cond: (val > 100)
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ Index Cond: (id = t2_2.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < $1)
+ -> Index Scan using t2_pkey on t2
+ -> Hash
+ -> Seq Scan on t3
+(18 rows)
+
+/*+Leading(((t1 t2) t3)) Leading(((t3 t1) t2))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t1.val = t3.val AND t1.id < ( SELECT t1_2.id FROM t1 t1_2, t2 t2_2 WHERE t1_2.id = t2_2.id AND t2_2.val > 100 ORDER BY t1_2.id LIMIT 1);
+INFO: pg_hint_plan: hint syntax error at or near "Leading(((t1 t2) t3)) Leading(((t3 t1) t2))"
+DETAIL: Conflict leading hint.
+LOG: pg_hint_plan:
+used hint:
+Leading(((t3 t1) t2))
+not used hint:
+duplication hint:
+Leading(((t1 t2) t3))
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------------------
+ Hash Join
+ Hash Cond: (t1.id = t2.id)
+ InitPlan 1 (returns $1)
+ -> Limit
+ -> Sort
+ Sort Key: t1_2.id
+ -> Nested Loop
+ -> Index Scan using t2_val on t2 t2_2
+ Index Cond: (val > 100)
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ Index Cond: (id = t2_2.id)
+ -> Hash Join
+ Hash Cond: (t3.val = t1.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < $1)
+ -> Hash
+ -> Seq Scan on t2
+(19 rows)
+
+/*+Leading(((t1 t2) t3)) Leading((t1_2 t2_2))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < ( SELECT t1_2.id FROM t1 t1_2, t2 t2_2 WHERE t1_2.id = t2_2.id AND t2_2.val > 100 ORDER BY t1_2.id LIMIT 1);
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+Leading((t1_2 t2_2))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------------
+ Hash Join
+ Hash Cond: (t2.val = t3.val)
+ InitPlan 1 (returns $0)
+ -> Limit
+ -> Merge Join
+ Merge Cond: (t1_2.id = t2_2.id)
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ -> Sort
+ Sort Key: t2_2.id
+ -> Index Scan using t2_val on t2 t2_2
+ Index Cond: (val > 100)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < $0)
+ -> Index Scan using t2_pkey on t2
+ -> Hash
+ -> Seq Scan on t3
+(18 rows)
+
+/*+Leading(((((t1 t2) t3) t1_2) t2_2))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < ( SELECT t1_2.id FROM t1 t1_2, t2 t2_2 WHERE t1_2.id = t2_2.id AND t2_2.val > 100 ORDER BY t1_2.id LIMIT 1);
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+Leading(((((t1 t2) t3) t1_2) t2_2))
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------------------
+ Hash Join
+ Hash Cond: (t2.val = t3.val)
+ InitPlan 1 (returns $1)
+ -> Limit
+ -> Sort
+ Sort Key: t1_2.id
+ -> Nested Loop
+ -> Index Scan using t2_val on t2 t2_2
+ Index Cond: (val > 100)
+ -> Index Only Scan using t1_pkey on t1 t1_2
+ Index Cond: (id = t2_2.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < $1)
+ -> Index Scan using t2_pkey on t2
+ -> Hash
+ -> Seq Scan on t3
+(18 rows)
+
+-- Specified outer/inner leading hint and join method hint at the same time
+/*+Leading(((t1 t2) t3))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+/*+Leading(((t1 t2) t3)) MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+MergeJoin(t1 t2)
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Index Scan using t2_pkey on t2
+ -> Seq Scan on t3
+(8 rows)
+
+/*+Leading(((t1 t2) t3)) MergeJoin(t1 t2 t3)*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+MergeJoin(t1 t2 t3)
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Merge Join
+ Merge Cond: (t2.val = t3.val)
+ -> Sort
+ Sort Key: t2.val
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Sort
+ Sort Key: t3.val
+ -> Seq Scan on t3
+(13 rows)
+
+/*+Leading(((t1 t2) t3)) MergeJoin(t1 t3)*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+MergeJoin(t1 t3)
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+ QUERY PLAN
+--------------------------------------------------------
+ Nested Loop
+ -> Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Index Scan using t3_pkey on t3
+ -> Materialize
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t2_pkey on t2
+ Index Cond: (id = t1.id)
+(14 rows)
+
+/*+Leading(((t1 t2) t3)) MergeJoin(t3 t4)*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+MergeJoin(t3 t4)
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Nested Loop
+ Join Filter: (t3.id = t4.id)
+ -> Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+ -> Seq Scan on t4
+(12 rows)
+
+/*+Leading(((t1 t2) t3)) MergeJoin(t1 t2 t3 t4)*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4 WHERE t1.id = t2.id AND t3.id = t4.id AND t1.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+MergeJoin(t1 t2 t3 t4)
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------
+ Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Sort
+ Sort Key: t3.id
+ -> Nested Loop
+ Join Filter: (t1.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+(16 rows)
+
+/*+ Leading ( ( t1 ( t2 t3 ) ) ) */
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading((t1 (t2 t3)))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.val = t3.val)
+ -> Seq Scan on t2
+ -> Hash
+ -> Seq Scan on t3
+(10 rows)
+
+/*+Leading((t1(t2 t3)))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading((t1 (t2 t3)))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.val = t3.val)
+ -> Seq Scan on t2
+ -> Hash
+ -> Seq Scan on t3
+(10 rows)
+
+/*+Leading(("t1(t2" "t3)"))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+Leading(("t1(t2" "t3)"))
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+/*+ Leading ( ( ( t1 t2 ) t3 ) ) */
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+/*+Leading(((t1 t2)t3))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) t3))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Nested Loop
+ Join Filter: (t2.val = t3.val)
+ -> Hash Join
+ Hash Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+ -> Hash
+ -> Seq Scan on t2
+ -> Seq Scan on t3
+(9 rows)
+
+/*+Leading(("(t1" "t2)t3"))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3 WHERE t1.id = t2.id AND t2.val = t3.val AND t1.id < 10;
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+Leading(("(t1" "t2)t3"))
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------
+ Hash Join
+ Hash Cond: (t3.val = t2.val)
+ -> Seq Scan on t3
+ -> Hash
+ -> Hash Join
+ Hash Cond: (t2.id = t1.id)
+ -> Seq Scan on t2
+ -> Hash
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id < 10)
+(10 rows)
+
+/*+Leading((t1(t2(t3(t4 t5)))))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading((t1 (t2 (t3 (t4 t5)))))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t2.id = t3.id)
+ -> Index Scan using t2_pkey on t2
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Index Scan using t3_pkey on t3
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t4.id = t5.id)
+ -> Index Scan using t4_pkey on t4
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+(16 rows)
+
+/*+Leading((t5(t4(t3(t2 t1)))))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading((t5 (t4 (t3 (t2 t1)))))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------------------------
+ Hash Join
+ Hash Cond: (t5.id = t1.id)
+ -> Seq Scan on t5
+ -> Hash
+ -> Merge Join
+ Merge Cond: (t4.id = t1.id)
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t3.id = t1.id)
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t2.id = t1.id)
+ -> Index Scan using t2_pkey on t2
+ -> Index Scan using t1_pkey on t1
+(20 rows)
+
+/*+Leading(((((t1 t2)t3)t4)t5))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading(((((t1 t2) t3) t4) t5))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------
+ Nested Loop
+ -> Merge Join
+ Merge Cond: (t1.id = t4.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t3.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+ Index Cond: (id = t1.id)
+(17 rows)
+
+/*+Leading(((((t5 t4)t3)t2)t1))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading(((((t5 t4) t3) t2) t1))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------
+ Nested Loop
+ Join Filter: (t2.id = t1.id)
+ -> Nested Loop
+ Join Filter: (t3.id = t2.id)
+ -> Merge Join
+ Merge Cond: (t4.id = t3.id)
+ -> Merge Join
+ Merge Cond: (t5.id = t4.id)
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
+ -> Index Scan using t2_pkey on t2
+ Index Cond: (id = t5.id)
+ -> Index Scan using t1_pkey on t1
+ Index Cond: (id = t5.id)
+(17 rows)
+
+/*+Leading(((t1 t2)(t3(t4 t5))))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t1 t2) (t3 (t4 t5))))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: (t1.id = t3.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t3.id = t4.id)
+ -> Index Scan using t3_pkey on t3
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t4.id = t5.id)
+ -> Index Scan using t4_pkey on t4
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+(15 rows)
+
+/*+Leading(((t5 t4)(t3(t2 t1))))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading(((t5 t4) (t3 (t2 t1))))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: (t4.id = t1.id)
+ -> Merge Join
+ Merge Cond: (t5.id = t4.id)
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t3.id = t1.id)
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t2.id = t1.id)
+ -> Index Scan using t2_pkey on t2
+ -> Index Scan using t1_pkey on t1
+(19 rows)
+
+/*+Leading((((t1 t2)t3)(t4 t5)))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading((((t1 t2) t3) (t4 t5)))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: (t1.id = t4.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t3.id)
+ -> Merge Join
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1
+ -> Index Scan using t2_pkey on t2
+ -> Sort
+ Sort Key: t3.id
+ -> Seq Scan on t3
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t4.id = t5.id)
+ -> Index Scan using t4_pkey on t4
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+(16 rows)
+
+/*+Leading((((t5 t4)t3)(t2 t1)))*/
+EXPLAIN (COSTS false) SELECT * FROM t1, t2, t3, t4, t5 WHERE t1.id = t2.id AND t1.id = t3.id AND t1.id = t4.id AND t1.id = t5.id;
+LOG: pg_hint_plan:
+used hint:
+Leading((((t5 t4) t3) (t2 t1)))
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------
+ Merge Join
+ Merge Cond: (t3.id = t1.id)
+ -> Merge Join
+ Merge Cond: (t4.id = t3.id)
+ -> Merge Join
+ Merge Cond: (t5.id = t4.id)
+ -> Index Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+ -> Sort
+ Sort Key: t4.id
+ -> Seq Scan on t4
+ -> Index Scan using t3_pkey on t3
+ -> Materialize
+ -> Merge Join
+ Merge Cond: (t2.id = t1.id)
+ -> Index Scan using t2_pkey on t2
+ -> Index Scan using t1_pkey on t1
+(16 rows)
+
+-- inherite table test to specify the index's name
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(9 rows)
+
+/*+IndexScan(p2 p2_pkey)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_pkey
+LOG: available indexes for IndexScan(p2_c1): p2_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p2_pkey on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_pkey on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_pkey on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_pkey on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_id_val_idx)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_id_val_idx
+LOG: available indexes for IndexScan(p2_c1): p2_c1_id_val_idx
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_id_val_idx
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_id_val_idx
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_id_val_idx)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------
+ Append
+ -> Index Scan using p2_id_val_idx on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_id_val_idx on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_id_val_idx on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_id_val_idx on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_val_id_idx)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_val_id_idx
+LOG: available indexes for IndexScan(p2_c1): p2_c1_val_id_idx
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_val_id_idx
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_val_id_idx
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_val_id_idx)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------------
+ Append
+ -> Index Scan using p2_val_id_idx on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_val_id_idx on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_val_id_idx on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_val_id_idx on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+EXPLAIN (COSTS false) SELECT val FROM p2 WHERE val >= '50' AND val <= '51' AND p2.ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c4
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+(19 rows)
+
+-- Inhibit parallel exection to avoid interfaring the hint
+set max_parallel_workers_per_gather to 0;
+/*+ IndexScan(p2 p2_val)*/
+EXPLAIN (COSTS false) SELECT val FROM p2 WHERE val >= '50' AND val <= '51' AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2):
+LOG: available indexes for IndexScan(p2_c1):
+LOG: available indexes for IndexScan(p2_c2):
+LOG: available indexes for IndexScan(p2_c3):
+LOG: available indexes for IndexScan(p2_c4):
+LOG: available indexes for IndexScan(p2_c1_c1):
+LOG: available indexes for IndexScan(p2_c1_c2):
+LOG: available indexes for IndexScan(p2_c3_c1):
+LOG: available indexes for IndexScan(p2_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_val)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c4
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+(19 rows)
+
+/*+IndexScan(p2 p2_pkey)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_pkey
+LOG: available indexes for IndexScan(p2_c1): p2_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p2_pkey on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_pkey on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_pkey on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_pkey on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_id2_val)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_id2_val
+LOG: available indexes for IndexScan(p2_c1): p2_c1_id2_val
+LOG: available indexes for IndexScan(p2_c1_c1):
+LOG: available indexes for IndexScan(p2_c1_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_id2_val)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Index Scan using p2_id2_val on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_id2_val on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Seq Scan on p2_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(11 rows)
+
+/*+IndexScan(p2 p2_val2_id)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_val2_id
+LOG: available indexes for IndexScan(p2_c1):
+LOG: available indexes for IndexScan(p2_c1_c1):
+LOG: available indexes for IndexScan(p2_c1_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_val2_id)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Index Scan using p2_val2_id on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Seq Scan on p2_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(10 rows)
+
+/*+IndexScan(p2 p2_pkey)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_pkey
+LOG: available indexes for IndexScan(p2_c1): p2_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p2_pkey on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_pkey on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_pkey on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_pkey on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_c1_id_val_idx)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2):
+LOG: available indexes for IndexScan(p2_c1): p2_c1_id_val_idx
+LOG: available indexes for IndexScan(p2_c1_c1):
+LOG: available indexes for IndexScan(p2_c1_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_c1_id_val_idx)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Index Scan using p2_c1_id_val_idx on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Seq Scan on p2_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(10 rows)
+
+/*+IndexScan(p2 no_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2):
+LOG: available indexes for IndexScan(p2_c1):
+LOG: available indexes for IndexScan(p2_c1_c1):
+LOG: available indexes for IndexScan(p2_c1_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 no_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(9 rows)
+
+/*+IndexScan(p2 p2_pkey p2_c1_id_val_idx)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_pkey
+LOG: available indexes for IndexScan(p2_c1): p2_c1_id_val_idx p2_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_pkey p2_c1_id_val_idx)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p2_pkey on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_id_val_idx on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_pkey on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_pkey on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_pkey no_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_pkey
+LOG: available indexes for IndexScan(p2_c1): p2_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_pkey no_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p2_pkey on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_pkey on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_pkey on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_pkey on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_c1_id_val_idx no_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2):
+LOG: available indexes for IndexScan(p2_c1): p2_c1_id_val_idx
+LOG: available indexes for IndexScan(p2_c1_c1):
+LOG: available indexes for IndexScan(p2_c1_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_c1_id_val_idx no_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Index Scan using p2_c1_id_val_idx on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Seq Scan on p2_c1_c1
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((id >= 50) AND (id <= 51) AND (ctid = '(1,1)'::tid))
+(10 rows)
+
+/*+IndexScan(p2 p2_pkey p2_c1_id_val_idx no_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM p2 WHERE id >= 50 AND id <= 51 AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_pkey
+LOG: available indexes for IndexScan(p2_c1): p2_c1_id_val_idx p2_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_pkey
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_pkey p2_c1_id_val_idx no_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p2_pkey on p2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_id_val_idx on p2_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_pkey on p2_c1_c1
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_pkey on p2_c1_c2
+ Index Cond: ((id >= 50) AND (id <= 51))
+ Filter: (ctid = '(1,1)'::tid)
+(13 rows)
+
+/*+IndexScan(p2 p2_val_idx)*/
+EXPLAIN (COSTS false) SELECT val FROM p2 WHERE val >= '50' AND val <= '51' AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_val_idx
+LOG: available indexes for IndexScan(p2_c1): p2_c1_val_idx
+LOG: available indexes for IndexScan(p2_c2): p2_c2_val_idx
+LOG: available indexes for IndexScan(p2_c3): p2_c3_val_idx
+LOG: available indexes for IndexScan(p2_c4): p2_c4_val_idx
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_val_idx
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_val_idx
+LOG: available indexes for IndexScan(p2_c3_c1): p2_c3_c1_val_idx
+LOG: available indexes for IndexScan(p2_c3_c2): p2_c3_c2_val_idx
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_val_idx)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------------------------------------
+ Append
+ -> Index Scan using p2_val_idx on p2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_val_idx on p2_c1
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c2_val_idx on p2_c2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c3_val_idx on p2_c3
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c4_val_idx on p2_c4
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_val_idx on p2_c1_c1
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_val_idx on p2_c1_c2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c3_c1_val_idx on p2_c3_c1
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c3_c2_val_idx on p2_c3_c2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+(28 rows)
+
+/*+IndexScan(p2 p2_expr)*/
+EXPLAIN (COSTS false) SELECT val FROM p2 WHERE val >= '50' AND val <= '51' AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_expr
+LOG: available indexes for IndexScan(p2_c1): p2_c1_expr_idx
+LOG: available indexes for IndexScan(p2_c2): p2_c2_expr_idx
+LOG: available indexes for IndexScan(p2_c3): p2_c3_expr_idx
+LOG: available indexes for IndexScan(p2_c4): p2_c4_expr_idx
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_expr_idx
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_expr_idx
+LOG: available indexes for IndexScan(p2_c3_c1): p2_c3_c1_expr_idx
+LOG: available indexes for IndexScan(p2_c3_c2): p2_c3_c2_expr_idx
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_expr)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c4
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+(19 rows)
+
+/*+IndexScan(p2 p2_val_idx6)*/
+EXPLAIN (COSTS false) SELECT val FROM p2 WHERE val >= '50' AND val <= '51' AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_val_idx6
+LOG: available indexes for IndexScan(p2_c1): p2_c1_val_idx6
+LOG: available indexes for IndexScan(p2_c2): p2_c2_val_idx6
+LOG: available indexes for IndexScan(p2_c3): p2_c3_val_idx6
+LOG: available indexes for IndexScan(p2_c4): p2_c4_val_idx6
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_val_idx6
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_val_idx6
+LOG: available indexes for IndexScan(p2_c3_c1): p2_c3_c1_val_idx6
+LOG: available indexes for IndexScan(p2_c3_c2): p2_c3_c2_val_idx6
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_val_idx6)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------------------------------------------------
+ Append
+ -> Seq Scan on p2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c4
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c1_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c1
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+ -> Seq Scan on p2_c3_c2
+ Filter: ((val >= '50'::text) AND (val <= '51'::text) AND (ctid = '(1,1)'::tid))
+(19 rows)
+
+/*+IndexScan(p2 p2_val_idx p2_val_idx6)*/
+EXPLAIN (COSTS false) SELECT val FROM p2 WHERE val >= '50' AND val <= '51' AND p2.ctid = '(1,1)';
+LOG: available indexes for IndexScan(p2): p2_val_idx6 p2_val_idx
+LOG: available indexes for IndexScan(p2_c1): p2_c1_val_idx6 p2_c1_val_idx
+LOG: available indexes for IndexScan(p2_c2): p2_c2_val_idx6 p2_c2_val_idx
+LOG: available indexes for IndexScan(p2_c3): p2_c3_val_idx6 p2_c3_val_idx
+LOG: available indexes for IndexScan(p2_c4): p2_c4_val_idx6 p2_c4_val_idx
+LOG: available indexes for IndexScan(p2_c1_c1): p2_c1_c1_val_idx6 p2_c1_c1_val_idx
+LOG: available indexes for IndexScan(p2_c1_c2): p2_c1_c2_val_idx6 p2_c1_c2_val_idx
+LOG: available indexes for IndexScan(p2_c3_c1): p2_c3_c1_val_idx6 p2_c3_c1_val_idx
+LOG: available indexes for IndexScan(p2_c3_c2): p2_c3_c2_val_idx6 p2_c3_c2_val_idx
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p2 p2_val_idx p2_val_idx6)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------------------------------------
+ Append
+ -> Index Scan using p2_val_idx on p2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_val_idx on p2_c1
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c2_val_idx on p2_c2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c3_val_idx on p2_c3
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c4_val_idx on p2_c4
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c1_val_idx on p2_c1_c1
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c1_c2_val_idx on p2_c1_c2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c3_c1_val_idx on p2_c3_c1
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using p2_c3_c2_val_idx on p2_c3_c2
+ Index Cond: ((val >= '50'::text) AND (val <= '51'::text))
+ Filter: (ctid = '(1,1)'::tid)
+(28 rows)
+
+-- regular expression
+-- ordinary table
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+ QUERY PLAN
+---------------------------------------------------------------------------------------------
+ Index Only Scan using t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+ IndexScanRegexp(t5 t5_[^i].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexScanRegexp(t5): t5_val t5_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(t5 t5_[^i].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------
+ Index Scan using t5_pkey on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+ IndexScanRegexp(t5 t5_id[0-9].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexScanRegexp(t5): t5_id3 t5_id2 t5_id1
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(t5 t5_id[0-9].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------
+ Index Scan using t5_id3 on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+ IndexScanRegexp(t5 t5[^_].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexScanRegexp(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(t5 t5[^_].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ IndexScanRegexp(t5 ^.*t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexScanRegexp(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(t5 ^.*t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ IndexScan(t5 t5_id[0-9].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexScan(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t5 t5_id[0-9].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ IndexOnlyScanRegexp(t5 t5_[^i].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexOnlyScanRegexp(t5): t5_val t5_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(t5 t5_[^i].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------
+ Index Only Scan using t5_pkey on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+ IndexOnlyScanRegexp(t5 t5_id[0-9].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexOnlyScanRegexp(t5): t5_id3 t5_id2 t5_id1
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(t5 t5_id[0-9].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------
+ Index Only Scan using t5_id3 on t5
+ Index Cond: (id = 1)
+(2 rows)
+
+/*+ IndexOnlyScanRegexp(t5 t5[^_].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexOnlyScanRegexp(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(t5 t5[^_].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ IndexOnlyScanRegexp(t5 ^.*t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexOnlyScanRegexp(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(t5 ^.*t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ IndexOnlyScan(t5 t5_id[0-9].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for IndexOnlyScan(t5):
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(t5 t5_id[0-9].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ BitmapScanRegexp(t5 t5_[^i].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for BitmapScanRegexp(t5): t5_val t5_pkey
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(t5 t5_[^i].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------
+ Bitmap Heap Scan on t5
+ Recheck Cond: (id = 1)
+ -> Bitmap Index Scan on t5_pkey
+ Index Cond: (id = 1)
+(4 rows)
+
+/*+ BitmapScanRegexp(t5 t5_id[0-9].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for BitmapScanRegexp(t5): t5_id3 t5_id2 t5_id1
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(t5 t5_id[0-9].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------
+ Bitmap Heap Scan on t5
+ Recheck Cond: (id = 1)
+ -> Bitmap Index Scan on t5_id3
+ Index Cond: (id = 1)
+(4 rows)
+
+/*+ BitmapScanRegexp(t5 t5[^_].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for BitmapScanRegexp(t5):
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(t5 t5[^_].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ BitmapScanRegexp(t5 ^.*t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for BitmapScanRegexp(t5):
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(t5 ^.*t5_idaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+/*+ BitmapScan(t5 t5_id[0-9].*)*/
+EXPLAIN (COSTS false) SELECT id FROM t5 WHERE id = 1;
+LOG: available indexes for BitmapScan(t5):
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(t5 t5_id[0-9].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t5
+ Filter: (id = 1)
+(2 rows)
+
+-- Inheritance
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ IndexScanRegexp(p1 p1_.*[^0-9]$)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexScanRegexp(p1): p1_pkey
+LOG: available indexes for IndexScanRegexp(p1_c1): p1_c1_pkey
+LOG: available indexes for IndexScanRegexp(p1_c2): p1_c2_pkey
+LOG: available indexes for IndexScanRegexp(p1_c3): p1_c3_pkey
+LOG: available indexes for IndexScanRegexp(p1_c4): p1_c4_pkey
+LOG: available indexes for IndexScanRegexp(p1_c1_c1): p1_c1_c1_pkey
+LOG: available indexes for IndexScanRegexp(p1_c1_c2): p1_c1_c2_pkey
+LOG: available indexes for IndexScanRegexp(p1_c3_c1): p1_c3_c1_pkey
+LOG: available indexes for IndexScanRegexp(p1_c3_c2): p1_c3_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(p1 p1_.*[^0-9]$)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ IndexScanRegexp(p1 p1_.*val2.*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexScanRegexp(p1): p1_val2
+LOG: available indexes for IndexScanRegexp(p1_c1): p1_c1_val2
+LOG: available indexes for IndexScanRegexp(p1_c2): p1_c2_val2
+LOG: available indexes for IndexScanRegexp(p1_c3): p1_c3_val2
+LOG: available indexes for IndexScanRegexp(p1_c4): p1_c4_val2
+LOG: available indexes for IndexScanRegexp(p1_c1_c1): p1_c1_c1_val2
+LOG: available indexes for IndexScanRegexp(p1_c1_c2): p1_c1_c2_val2
+LOG: available indexes for IndexScanRegexp(p1_c3_c1): p1_c3_c1_val2
+LOG: available indexes for IndexScanRegexp(p1_c3_c2): p1_c3_c2_val2
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(p1 p1_.*val2.*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------------
+ Append
+ -> Index Scan using p1_val2 on p1
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c1_val2 on p1_c1
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c2_val2 on p1_c2
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c3_val2 on p1_c3
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c4_val2 on p1_c4
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c1_c1_val2 on p1_c1_c1
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c1_c2_val2 on p1_c1_c2
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c3_c1_val2 on p1_c3_c1
+ Index Cond: (val = 1)
+ -> Index Scan using p1_c3_c2_val2 on p1_c3_c2
+ Index Cond: (val = 1)
+(19 rows)
+
+/*+ IndexScanRegexp(p1 p1[^_].*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexScanRegexp(p1):
+LOG: available indexes for IndexScanRegexp(p1_c1):
+LOG: available indexes for IndexScanRegexp(p1_c2):
+LOG: available indexes for IndexScanRegexp(p1_c3):
+LOG: available indexes for IndexScanRegexp(p1_c4):
+LOG: available indexes for IndexScanRegexp(p1_c1_c1):
+LOG: available indexes for IndexScanRegexp(p1_c1_c2):
+LOG: available indexes for IndexScanRegexp(p1_c3_c1):
+LOG: available indexes for IndexScanRegexp(p1_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(p1 p1[^_].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ IndexScan(p1 p1_.*val2.*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexScan(p1):
+LOG: available indexes for IndexScan(p1_c1):
+LOG: available indexes for IndexScan(p1_c2):
+LOG: available indexes for IndexScan(p1_c3):
+LOG: available indexes for IndexScan(p1_c4):
+LOG: available indexes for IndexScan(p1_c1_c1):
+LOG: available indexes for IndexScan(p1_c1_c2):
+LOG: available indexes for IndexScan(p1_c3_c1):
+LOG: available indexes for IndexScan(p1_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1 p1_.*val2.*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ IndexOnlyScanRegexp(p1 p1_.*[^0-9]$)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexOnlyScanRegexp(p1): p1_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1): p1_c1_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c2): p1_c2_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3): p1_c3_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c4): p1_c4_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1_c1): p1_c1_c1_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1_c2): p1_c1_c2_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3_c1): p1_c3_c1_pkey
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3_c2): p1_c3_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(p1 p1_.*[^0-9]$)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ IndexOnlyScanRegexp(p1 p1_.*val2.*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexOnlyScanRegexp(p1): p1_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1): p1_c1_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c2): p1_c2_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3): p1_c3_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c4): p1_c4_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1_c1): p1_c1_c1_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1_c2): p1_c1_c2_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3_c1): p1_c3_c1_val2
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3_c2): p1_c3_c2_val2
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(p1 p1_.*val2.*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------------------------
+ Append
+ -> Index Only Scan using p1_val2 on p1
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c1_val2 on p1_c1
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c2_val2 on p1_c2
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c3_val2 on p1_c3
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c4_val2 on p1_c4
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c1_c1_val2 on p1_c1_c1
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c1_c2_val2 on p1_c1_c2
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c3_c1_val2 on p1_c3_c1
+ Index Cond: (val = 1)
+ -> Index Only Scan using p1_c3_c2_val2 on p1_c3_c2
+ Index Cond: (val = 1)
+(19 rows)
+
+/*+ IndexOnlyScanRegexp(p1 p1[^_].*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexOnlyScanRegexp(p1):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c2):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c4):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1_c1):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c1_c2):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3_c1):
+LOG: available indexes for IndexOnlyScanRegexp(p1_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScanRegexp(p1 p1[^_].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ IndexOnlyScan(p1 p1_.*val2.*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for IndexOnlyScan(p1):
+LOG: available indexes for IndexOnlyScan(p1_c1):
+LOG: available indexes for IndexOnlyScan(p1_c2):
+LOG: available indexes for IndexOnlyScan(p1_c3):
+LOG: available indexes for IndexOnlyScan(p1_c4):
+LOG: available indexes for IndexOnlyScan(p1_c1_c1):
+LOG: available indexes for IndexOnlyScan(p1_c1_c2):
+LOG: available indexes for IndexOnlyScan(p1_c3_c1):
+LOG: available indexes for IndexOnlyScan(p1_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(p1 p1_.*val2.*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ BitmapScanRegexp(p1 p1_.*[^0-9]$)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for BitmapScanRegexp(p1): p1_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c1): p1_c1_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c2): p1_c2_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c3): p1_c3_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c4): p1_c4_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c1_c1): p1_c1_c1_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c1_c2): p1_c1_c2_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c3_c1): p1_c3_c1_pkey
+LOG: available indexes for BitmapScanRegexp(p1_c3_c2): p1_c3_c2_pkey
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(p1 p1_.*[^0-9]$)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ BitmapScanRegexp(p1 p1_.*val2.*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for BitmapScanRegexp(p1): p1_val2
+LOG: available indexes for BitmapScanRegexp(p1_c1): p1_c1_val2
+LOG: available indexes for BitmapScanRegexp(p1_c2): p1_c2_val2
+LOG: available indexes for BitmapScanRegexp(p1_c3): p1_c3_val2
+LOG: available indexes for BitmapScanRegexp(p1_c4): p1_c4_val2
+LOG: available indexes for BitmapScanRegexp(p1_c1_c1): p1_c1_c1_val2
+LOG: available indexes for BitmapScanRegexp(p1_c1_c2): p1_c1_c2_val2
+LOG: available indexes for BitmapScanRegexp(p1_c3_c1): p1_c3_c1_val2
+LOG: available indexes for BitmapScanRegexp(p1_c3_c2): p1_c3_c2_val2
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(p1 p1_.*val2.*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------
+ Append
+ -> Bitmap Heap Scan on p1
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c1
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c1_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c2
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c2_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c3
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c3_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c4
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c4_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c1_c1
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c1_c1_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c1_c2
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c1_c2_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c3_c1
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c3_c1_val2
+ Index Cond: (val = 1)
+ -> Bitmap Heap Scan on p1_c3_c2
+ Recheck Cond: (val = 1)
+ -> Bitmap Index Scan on p1_c3_c2_val2
+ Index Cond: (val = 1)
+(37 rows)
+
+/*+ BitmapScanRegexp(p1 p1[^_].*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for BitmapScanRegexp(p1):
+LOG: available indexes for BitmapScanRegexp(p1_c1):
+LOG: available indexes for BitmapScanRegexp(p1_c2):
+LOG: available indexes for BitmapScanRegexp(p1_c3):
+LOG: available indexes for BitmapScanRegexp(p1_c4):
+LOG: available indexes for BitmapScanRegexp(p1_c1_c1):
+LOG: available indexes for BitmapScanRegexp(p1_c1_c2):
+LOG: available indexes for BitmapScanRegexp(p1_c3_c1):
+LOG: available indexes for BitmapScanRegexp(p1_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+BitmapScanRegexp(p1 p1[^_].*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+/*+ BitmapScan(p1 p1_.*val2.*)*/
+EXPLAIN (COSTS false) SELECT val FROM p1 WHERE val = 1;
+LOG: available indexes for BitmapScan(p1):
+LOG: available indexes for BitmapScan(p1_c1):
+LOG: available indexes for BitmapScan(p1_c2):
+LOG: available indexes for BitmapScan(p1_c3):
+LOG: available indexes for BitmapScan(p1_c4):
+LOG: available indexes for BitmapScan(p1_c1_c1):
+LOG: available indexes for BitmapScan(p1_c1_c2):
+LOG: available indexes for BitmapScan(p1_c3_c1):
+LOG: available indexes for BitmapScan(p1_c3_c2):
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(p1 p1_.*val2.*)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------
+ Append
+ -> Seq Scan on p1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3
+ Filter: (val = 1)
+ -> Seq Scan on p1_c4
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c1_c2
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c1
+ Filter: (val = 1)
+ -> Seq Scan on p1_c3_c2
+ Filter: (val = 1)
+(19 rows)
+
+-- search from hint table
+INSERT INTO hint_plan.hints (norm_query_string, application_name, hints) VALUES ('EXPLAIN (COSTS false) SELECT * FROM t1 WHERE t1.id = ?;', '', 'SeqScan(t1)');
+INSERT INTO hint_plan.hints (norm_query_string, application_name, hints) VALUES ('EXPLAIN (COSTS false) SELECT id FROM t1 WHERE t1.id = ?;', '', 'IndexScan(t1)');
+INSERT INTO hint_plan.hints (norm_query_string, application_name, hints) VALUES ('EXPLAIN SELECT * FROM t1 WHERE t1.id = ?;', '', 'BitmapScan(t1)');
+SELECT * FROM hint_plan.hints ORDER BY id;
+ id | norm_query_string | application_name | hints
+----+----------------------------------------------------------+------------------+----------------
+ 1 | EXPLAIN (COSTS false) SELECT * FROM t1 WHERE t1.id = ?; | | SeqScan(t1)
+ 2 | EXPLAIN (COSTS false) SELECT id FROM t1 WHERE t1.id = ?; | | IndexScan(t1)
+ 3 | EXPLAIN SELECT * FROM t1 WHERE t1.id = ?; | | BitmapScan(t1)
+(3 rows)
+
+SET pg_hint_plan.enable_hint_table = on;
+EXPLAIN (COSTS false) SELECT * FROM t1 WHERE t1.id = 1;
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on t1
+ Filter: (id = 1)
+(2 rows)
+
+SET pg_hint_plan.enable_hint_table = off;
+EXPLAIN (COSTS false) SELECT * FROM t1 WHERE t1.id = 1;
+ QUERY PLAN
+--------------------------------
+ Index Scan using t1_pkey on t1
+ Index Cond: (id = 1)
+(2 rows)
+
+TRUNCATE hint_plan.hints;
+VACUUM ANALYZE hint_plan.hints;
+-- plpgsql test
+EXPLAIN (COSTS false) SELECT id FROM t1 WHERE t1.id = 1;
+ QUERY PLAN
+-------------------------------------
+ Index Only Scan using t1_pkey on t1
+ Index Cond: (id = 1)
+(2 rows)
+
+-- static function
+CREATE FUNCTION testfunc() RETURNS RECORD AS $$
+DECLARE
+ ret record;
+BEGIN
+ SELECT /*+ SeqScan(t1) */ * INTO ret FROM t1 LIMIT 1;
+ RETURN ret;
+END;
+$$ LANGUAGE plpgsql;
+SELECT testfunc();
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "SELECT /*+ SeqScan(t1) */ * FROM t1 LIMIT 1"
+PL/pgSQL function testfunc() line 5 at SQL statement
+ testfunc
+----------
+ (1,1)
+(1 row)
+
+-- dynamic function
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS void AS $$
+BEGIN
+ EXECUTE format('/*+ SeqScan(t1) */ SELECT * FROM t1');
+END;
+$$ LANGUAGE plpgsql;
+SELECT testfunc();
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "/*+ SeqScan(t1) */ SELECT * FROM t1"
+PL/pgSQL function testfunc() line 3 at EXECUTE
+ testfunc
+----------
+
+(1 row)
+
+-- This should not use SeqScan(t1)
+/*+ IndexScan(t1) */ SELECT * from t1 LIMIT 1;
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ id | val
+----+-----
+ 1 | 1
+(1 row)
+
+-- Perform
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS void AS $$
+BEGIN
+ PERFORM 1, /*+ SeqScan(t1) */ * from t1;
+END;
+$$ LANGUAGE plpgsql;
+SELECT testfunc();
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "SELECT 1, /*+ SeqScan(t1) */ * from t1"
+PL/pgSQL function testfunc() line 3 at PERFORM
+ testfunc
+----------
+
+(1 row)
+
+-- FOR loop
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS int AS $$
+DECLARE
+ sum int;
+ v int;
+BEGIN
+ sum := 0;
+ FOR v IN SELECT /*+ SeqScan(t1) */ v FROM t1 ORDER BY id LOOP
+ sum := sum + v;
+ END LOOP;
+ RETURN v;
+END;
+$$ LANGUAGE plpgsql;
+SELECT testfunc();
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "SELECT /*+ SeqScan(t1) */ v FROM t1 ORDER BY id"
+PL/pgSQL function testfunc() line 7 at FOR over SELECT rows
+ testfunc
+----------
+
+(1 row)
+
+-- Dynamic FOR loop
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS int AS $$
+DECLARE
+ sum int;
+ v int;
+ i int;
+BEGIN
+ sum := 0;
+ FOR v IN EXECUTE 'SELECT /*+ SeqScan(t1) */ val FROM t1 ORDER BY id' LOOP
+ sum := sum + v;
+ END LOOP;
+ RETURN v;
+END;
+$$ LANGUAGE plpgsql;
+SELECT testfunc();
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "SELECT /*+ SeqScan(t1) */ val FROM t1 ORDER BY id"
+PL/pgSQL function testfunc() line 8 at FOR over EXECUTE statement
+ testfunc
+----------
+ 0
+(1 row)
+
+-- Cursor FOR loop
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS int AS $$
+DECLARE
+ ref CURSOR FOR SELECT /*+ SeqScan(t1) */ * FROM t1 ORDER BY id;
+ rec record;
+ sum int := 0;
+BEGIN
+ FOR rec IN ref LOOP
+ sum := sum + rec.val;
+ END LOOP;
+ RETURN sum;
+END;
+$$ LANGUAGE plpgsql;
+SELECT testfunc();
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "SELECT /*+ SeqScan(t1) */ * FROM t1 ORDER BY id"
+PL/pgSQL function testfunc() line 7 at FOR over cursor
+ testfunc
+----------
+ 495000
+(1 row)
+
+-- RETURN QUERY
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS SETOF t1 AS $$
+BEGIN
+ RETURN QUERY SELECT /*+ SeqScan(t1) */ * FROM t1 ORDER BY id;
+END;
+$$ LANGUAGE plpgsql;
+SELECT * FROM testfunc() LIMIT 1;
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "SELECT /*+ SeqScan(t1) */ * FROM t1 ORDER BY id"
+PL/pgSQL function testfunc() line 3 at RETURN QUERY
+ id | val
+----+-----
+ 1 | 1
+(1 row)
+
+-- Test for error exit from inner SQL statement.
+DROP FUNCTION testfunc();
+CREATE FUNCTION testfunc() RETURNS SETOF t1 AS $$
+BEGIN
+ RETURN QUERY SELECT /*+ SeqScan(t1) */ * FROM ttx ORDER BY id;
+END;
+$$ LANGUAGE plpgsql;
+SELECT * FROM testfunc() LIMIT 1;
+ERROR: relation "ttx" does not exist
+LINE 1: SELECT /*+ SeqScan(t1) */ * FROM ttx ORDER BY id
+ ^
+QUERY: SELECT /*+ SeqScan(t1) */ * FROM ttx ORDER BY id
+CONTEXT: PL/pgSQL function testfunc() line 3 at RETURN QUERY
+-- this should not use SeqScan(t1) hint.
+/*+ IndexScan(t1) */ SELECT * from t1 LIMIT 1;
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ id | val
+----+-----
+ 1 | 1
+(1 row)
+
+DROP FUNCTION testfunc();
+DROP EXTENSION pg_hint_plan;
+CREATE FUNCTION reset_stats_and_wait() RETURNS void AS $$
+DECLARE
+ rows int;
+BEGIN
+ rows = 1;
+ while rows > 0 LOOP
+ PERFORM pg_stat_reset();
+ PERFORM pg_sleep(0.5);
+ SELECT sum(seq_scan + idx_scan) from pg_stat_user_tables into rows;
+ END LOOP;
+END;
+$$ LANGUAGE plpgsql;
+-- Dynamic query in pl/pgsql
+CREATE OR REPLACE FUNCTION dynsql1(x int) RETURNS int AS $$
+DECLARE c int;
+BEGIN
+ EXECUTE '/*+ IndexScan(t1) */ SELECT count(*) FROM t1 WHERE id < $1'
+ INTO c USING x;
+ RETURN c;
+END;
+$$ VOLATILE LANGUAGE plpgsql;
+vacuum analyze t1;
+SET pg_hint_plan.enable_hint = false;
+SELECT reset_stats_and_wait();
+ reset_stats_and_wait
+----------------------
+
+(1 row)
+
+SELECT dynsql1(9000);
+ dynsql1
+---------
+ 8999
+(1 row)
+
+SELECT pg_sleep(1);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT relname, seq_scan > 0 as seq_scan, idx_scan > 0 as idx_scan FROM pg_stat_user_tables WHERE schemaname = 'public' AND relname = 't1';
+ relname | seq_scan | idx_scan
+---------+----------+----------
+ t1 | t | f
+(1 row)
+
+SET pg_hint_plan.enable_hint = true;
+SELECT reset_stats_and_wait();
+ reset_stats_and_wait
+----------------------
+
+(1 row)
+
+SELECT dynsql1(9000);
+LOG: pg_hint_plan:
+used hint:
+IndexScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "/*+ IndexScan(t1) */ SELECT count(*) FROM t1 WHERE id < $1"
+PL/pgSQL function dynsql1(integer) line 4 at EXECUTE
+ dynsql1
+---------
+ 8999
+(1 row)
+
+SELECT pg_sleep(1);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT relname, seq_scan > 0 as seq_scan, idx_scan > 0 as idx_scan FROM pg_stat_user_tables WHERE schemaname = 'public' AND relname = 't1';
+ relname | seq_scan | idx_scan
+---------+----------+----------
+ t1 | f | t
+(1 row)
+
+-- Looped dynamic query in pl/pgsql
+CREATE OR REPLACE FUNCTION dynsql2(x int, OUT r int) AS $$
+DECLARE
+ c text;
+ s int;
+BEGIN
+ r := 0;
+ FOR c IN SELECT f.f FROM (VALUES ('p1_c1'), ('p1_c2')) f(f) LOOP
+ FOR s IN EXECUTE '/*+ IndexScan(' || c || ' ' || c || '_pkey) */ SELECT sum(val) FROM ' || c || ' WHERE id < ' || x LOOP
+ r := r + s;
+ END LOOP;
+ END LOOP;
+END;
+$$ VOLATILE LANGUAGE plpgsql;
+SET pg_hint_plan.enable_hint = false;
+SELECT reset_stats_and_wait();
+ reset_stats_and_wait
+----------------------
+
+(1 row)
+
+SELECT dynsql2(9000);
+ dynsql2
+---------
+ 9900
+(1 row)
+
+SELECT pg_sleep(1);
+ pg_sleep
+----------
+
+(1 row)
+
+-- one of the index scans happened while planning.
+SELECT relname, seq_scan, idx_scan FROM pg_stat_user_tables WHERE schemaname = 'public' AND (relname = 'p1_c1' OR relname = 'p1_c2');
+ relname | seq_scan | idx_scan
+---------+----------+----------
+ p1_c1 | 1 | 0
+ p1_c2 | 1 | 1
+(2 rows)
+
+SET pg_hint_plan.enable_hint = true;
+SELECT reset_stats_and_wait();
+ reset_stats_and_wait
+----------------------
+
+(1 row)
+
+SELECT dynsql2(9000);
+LOG: available indexes for IndexScan(p1_c1): p1_c1_pkey
+CONTEXT: SQL statement "/*+ IndexScan(p1_c1 p1_c1_pkey) */ SELECT sum(val) FROM p1_c1 WHERE id < 9000"
+PL/pgSQL function dynsql2(integer) line 8 at FOR over EXECUTE statement
+LOG: available indexes for IndexScan(p1_c1_c1): p1_c1_c1_pkey
+CONTEXT: SQL statement "/*+ IndexScan(p1_c1 p1_c1_pkey) */ SELECT sum(val) FROM p1_c1 WHERE id < 9000"
+PL/pgSQL function dynsql2(integer) line 8 at FOR over EXECUTE statement
+LOG: available indexes for IndexScan(p1_c1_c2): p1_c1_c2_pkey
+CONTEXT: SQL statement "/*+ IndexScan(p1_c1 p1_c1_pkey) */ SELECT sum(val) FROM p1_c1 WHERE id < 9000"
+PL/pgSQL function dynsql2(integer) line 8 at FOR over EXECUTE statement
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1_c1 p1_c1_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "/*+ IndexScan(p1_c1 p1_c1_pkey) */ SELECT sum(val) FROM p1_c1 WHERE id < 9000"
+PL/pgSQL function dynsql2(integer) line 8 at FOR over EXECUTE statement
+LOG: available indexes for IndexScan(p1_c2): p1_c2_pkey
+CONTEXT: SQL statement "/*+ IndexScan(p1_c2 p1_c2_pkey) */ SELECT sum(val) FROM p1_c2 WHERE id < 9000"
+PL/pgSQL function dynsql2(integer) line 8 at FOR over EXECUTE statement
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1_c2 p1_c2_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+CONTEXT: SQL statement "/*+ IndexScan(p1_c2 p1_c2_pkey) */ SELECT sum(val) FROM p1_c2 WHERE id < 9000"
+PL/pgSQL function dynsql2(integer) line 8 at FOR over EXECUTE statement
+ dynsql2
+---------
+ 9900
+(1 row)
+
+SELECT pg_sleep(1);
+ pg_sleep
+----------
+
+(1 row)
+
+-- the index scan happened while planning.
+SELECT relname, seq_scan, idx_scan FROM pg_stat_user_tables WHERE schemaname = 'public' AND (relname = 'p1_c1' OR relname = 'p1_c2');
+ relname | seq_scan | idx_scan
+---------+----------+----------
+ p1_c1 | 0 | 1
+ p1_c2 | 0 | 2
+(2 rows)
+
+--
+-- Rows hint tests
+--
+-- Explain result includes "Planning time" if COSTS is enabled, but
+-- this test needs it enabled for get rows count. So do tests via psql
+-- and grep -v the mutable line.
+-- value types
+\o results/pg_hint_plan.tmpout
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=1000 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 #99) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 #99)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=99 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 +99) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 +99)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=1099 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 -99) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 -99)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=901 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 *99) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 *99)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=99000 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 *0.01) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 *0.01)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=10 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 #aa) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id); -- ERROR
+INFO: pg_hint_plan: hint syntax error at or near "aa"
+DETAIL: Rows hint requires valid number as rows estimation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+Rows(t1 t2 #aa)
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=1000 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 /99) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id); -- ERROR
+INFO: pg_hint_plan: hint syntax error at or near "/99"
+DETAIL: Unrecognized rows value type notation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+Rows(t1 t2 /99)
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=1000 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+-- round up to 1
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 -99999) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id);
+WARNING: Force estimate to be at least one row, to avoid possible divide-by-zero when interpolating costs : Rows(t1 t2 -99999)
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 -99999)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=1 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+(4 rows)
+
+-- complex join tree
+\o results/pg_hint_plan.tmpout
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id) JOIN t3 ON (t3.id = t2.id);
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=10 width=xxx)
+ Merge Cond: (t1.id = t3.id)
+ -> Merge Join (cost=xxx rows=1000 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+ -> Sort (cost=xxx rows=100 width=xxx)
+ Sort Key: t3.id
+ -> Seq Scan on t3 (cost=xxx rows=100 width=xxx)
+(9 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t2 #22) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id) JOIN t3 ON (t3.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t2 #22)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=1 width=xxx)
+ Merge Cond: (t1.id = t3.id)
+ -> Merge Join (cost=xxx rows=22 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+ -> Sort (cost=xxx rows=100 width=xxx)
+ Sort Key: t3.id
+ -> Seq Scan on t3 (cost=xxx rows=100 width=xxx)
+(9 rows)
+
+\o results/pg_hint_plan.tmpout
+/*+ Rows(t1 t3 *10) */
+EXPLAIN SELECT * FROM t1 JOIN t2 ON (t1.id = t2.id) JOIN t3 ON (t3.id = t2.id);
+LOG: pg_hint_plan:
+used hint:
+Rows(t1 t3 *10)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+set max_parallel_workers_per_gather to DEFAULT;
+\! sql/maskout.sh results/pg_hint_plan.tmpout
+ QUERY PLAN
+------------------------------------------------------------------------------------
+ Merge Join (cost=xxx rows=100 width=xxx)
+ Merge Cond: (t1.id = t3.id)
+ -> Merge Join (cost=xxx rows=1000 width=xxx)
+ Merge Cond: (t1.id = t2.id)
+ -> Index Scan using t1_pkey on t1 (cost=xxx rows=10000 width=xxx)
+ -> Index Scan using t2_pkey on t2 (cost=xxx rows=1000 width=xxx)
+ -> Sort (cost=xxx rows=100 width=xxx)
+ Sort Key: t3.id
+ -> Seq Scan on t3 (cost=xxx rows=100 width=xxx)
+(9 rows)
+
+\! rm results/pg_hint_plan.tmpout
+-- hint error level
+set client_min_messages to 'DEBUG1';
+set pg_hint_plan.debug_level to 'verbose';
+/*+ SeqScan( */ SELECT 1;
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: Closing parenthesis is necessary.
+ ?column?
+----------
+ 1
+(1 row)
+
+/*+ SeqScan(t1) */ SELECT * FROM t1 LIMIT 0;
+LOG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ id | val
+----+-----
+(0 rows)
+
+set pg_hint_plan.message_level to 'DEBUG1';
+set pg_hint_plan.parse_messages to 'NOTICE';
+/*+ SeqScan( */ SELECT 1;
+NOTICE: pg_hint_plan: hint syntax error at or near ""
+DETAIL: Closing parenthesis is necessary.
+ ?column?
+----------
+ 1
+(1 row)
+
+/*+ SeqScan(t1) */ SELECT * FROM t1 LIMIT 0;
+DEBUG: pg_hint_plan:
+used hint:
+SeqScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ id | val
+----+-----
+(0 rows)
+
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