LOAD 'pg_hint_plan';
-SET pg_hint_plan.enable TO on;
+-- We cannot do ALTER USER current_user SET ...
+DELETE FROM pg_db_role_setting WHERE setrole = (SELECT oid FROM pg_roles WHERE rolname = current_user);
+INSERT INTO pg_db_role_setting (SELECT 0, (SELECT oid FROM pg_roles WHERE rolname = current_user), '{client_min_messages=log,pg_hint_plan.debug_print=on}');
+ALTER SYSTEM SET session_preload_libraries TO 'pg_hint_plan';
+SELECT pg_reload_conf();
+ pg_reload_conf
+----------------
+ t
+(1 row)
+
+SET pg_hint_plan.enable_hint TO on;
SET pg_hint_plan.debug_print TO on;
SET client_min_messages TO LOG;
SET search_path TO public;
+SET max_parallel_workers_per_gather TO 0;
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 >= 1;
QUERY PLAN
---------------------
Nested Loop
-> Index Scan using t1_i1 on t1
Index Cond: (c1 = 1)
- -> Seq Scan on t1
+ -> Seq Scan on t1 t1_1
Filter: (c1 = 1)
(5 rows)
Recheck Cond: (c1 = 1)
-> Bitmap Index Scan on t1_i1
Index Cond: (c1 = 1)
- -> Bitmap Heap Scan on t1
+ -> Bitmap Heap Scan on t1 t1_1
Recheck Cond: (c1 = 1)
-> Bitmap Index Scan on t1_pkey
Index Cond: (c1 = 1)
EXPLAIN (COSTS false) SELECT (SELECT max(c1) FROM s1.t1 WHERE s1.t1.c1 = 1) FROM s1.t1 WHERE s1.t1.c1 = 1;
QUERY PLAN
---------------------------------------------------------------------
- Index Scan using t1_i1 on t1
+ Index Only Scan using t1_i1 on t1
Index Cond: (c1 = 1)
InitPlan 2 (returns $1)
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Index Scan using t1_i1 on t1
+ -> Index Only Scan using t1_i1 on t1 t1_1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
(8 rows)
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Bitmap Heap Scan on t1
+ -> Bitmap Heap Scan on t1 t1_1
Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
-> Bitmap Index Scan on t1_i1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
QUERY PLAN
---------------------------------------------------------------------------
- Index Scan using t1_i1 on t1 t12
+ Index Only Scan using t1_i1 on t1 t12
Index Cond: (c1 = 1)
InitPlan 2 (returns $1)
-> Result
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Index Scan using t1_i1 on t1 t11
+ -> Index Only Scan using t1_i1 on t1 t11
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
-> Bitmap Index Scan on t1_i1
Index Cond: (c1 = 1)
-- No. S-1-5-2
EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE p1.c1 = 1;
- QUERY PLAN
----------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: (c1 = 1)
- -> Seq Scan on p1c1 p1
- Filter: (c1 = 1)
-(6 rows)
+ QUERY PLAN
+-----------------------------
+ Append
+ -> Seq Scan on p1 p1_1
+ Filter: (c1 = 1)
+ -> Seq Scan on p1c1 p1_2
+ Filter: (c1 = 1)
+(5 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE p1.c1 = 1;
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------
- Result
- -> Append
- -> Index Scan using p1_pkey on p1
- Index Cond: (c1 = 1)
- -> Index Scan using p1c1_i on p1c1 p1
- Index Cond: (c1 = 1)
-(6 rows)
+ QUERY PLAN
+--------------------------------------------
+ Append
+ -> Index Scan using p1_i on p1 p1_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_i on p1c1 p1_2
+ Index Cond: (c1 = 1)
+(5 rows)
-- No. S-1-5-3
EXPLAIN (COSTS false) SELECT * FROM s1.ul1 WHERE ul1.c1 = 1;
-- No. S-1-5-4
CREATE TEMP TABLE tm1 (LIKE s1.t1 INCLUDING ALL);
-NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "tm1_pkey" for table "tm1"
EXPLAIN (COSTS false) SELECT * FROM tm1 WHERE tm1.c1 = 1;
- QUERY PLAN
-----------------------------------
- Index Scan using tm1_pkey on tm1
+ QUERY PLAN
+------------------------------------
+ Index Scan using tm1_c1_idx on tm1
Index Cond: (c1 = 1)
(2 rows)
QUERY PLAN
-------------------------------------------------
Index Scan using pg_class_oid_index on pg_class
- Index Cond: (oid = 1::oid)
+ Index Cond: (oid = '1'::oid)
(2 rows)
/*+SeqScan(pg_class)*/
duplication hint:
error hint:
- QUERY PLAN
---------------------------
+ QUERY PLAN
+----------------------------
Seq Scan on pg_class
- Filter: (oid = 1::oid)
+ Filter: (oid = '1'::oid)
(2 rows)
-- No. S-1-5-6
--- refer fdw.sql
+-- refer ut-fdw.sql
-- No. S-1-5-7
EXPLAIN (COSTS false) SELECT * FROM s1.f1() AS ft1 WHERE ft1.c1 = 1;
QUERY PLAN
-- No. S-1-5-9
EXPLAIN (COSTS false) WITH c1(c1) AS (SELECT max(c1) FROM s1.t1 WHERE t1.c1 = 1)
SELECT * FROM s1.t1, c1 WHERE t1.c1 = 1 AND t1.c1 = c1.c1;
- QUERY PLAN
----------------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------
Nested Loop
- CTE c1
- -> Result
- InitPlan 1 (returns $0)
- -> Limit
- -> Index Scan using t1_i1 on t1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
-> Index Scan using t1_i1 on t1
Index Cond: (c1 = 1)
- -> CTE Scan on c1
- Filter: (c1 = 1)
-(11 rows)
+ -> Result
+ One-Time Filter: ($0 = 1)
+ InitPlan 1 (returns $0)
+ -> Limit
+ -> Index Only Scan using t1_i1 on t1 t1_1
+ Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
+(9 rows)
/*+SeqScan(c1)*/
EXPLAIN (COSTS false) WITH c1(c1) AS (SELECT max(c1) FROM s1.t1 WHERE t1.c1 = 1)
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------
Nested Loop
- CTE c1
- -> Result
- InitPlan 1 (returns $0)
- -> Limit
- -> Index Scan using t1_i1 on t1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
-> Index Scan using t1_i1 on t1
Index Cond: (c1 = 1)
- -> CTE Scan on c1
- Filter: (c1 = 1)
-(11 rows)
+ -> Result
+ One-Time Filter: ($0 = 1)
+ InitPlan 1 (returns $0)
+ -> Limit
+ -> Index Only Scan using t1_i1 on t1 t1_1
+ Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
+(9 rows)
-- No. S-1-5-10
EXPLAIN (COSTS false) SELECT * FROM s1.v1 WHERE v1.c1 = 1;
(2 rows)
----
----- No. S-2-1 complexity query block
+---- No. S-2-1 some complexity query blocks
----
-- No. S-2-1-1
EXPLAIN (COSTS false)
)
FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------
Aggregate
- InitPlan 1 (returns $0)
+ InitPlan 1 (returns $1)
-> Aggregate
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (b1t1.c1 = b1t4.c1)
+ Merge Cond: (b1t1.c1 = b1t2.c1)
-> Merge Join
Merge Cond: (b1t1.c1 = b1t3.c1)
- -> Index Scan using t1_i1 on t1 b1t1
- -> Index Scan using t3_i1 on t3 b1t3
- -> Index Scan using t4_i1 on t4 b1t4
- -> Sort
- Sort Key: b1t2.c1
- -> Seq Scan on t2 b1t2
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ -> Index Only Scan using t3_i1 on t3 b1t3
+ -> Sort
+ Sort Key: b1t2.c1
+ -> Seq Scan on t2 b1t2
+ -> Index Only Scan using t4_i1 on t4 b1t4
+ Index Cond: (c1 = b1t1.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Merge Cond: (bmt1.c1 = bmt2.c1)
-> Merge Join
Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ -> Sort
+ Sort Key: bmt2.c1
+ -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
(27 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)
-BitmapScan(b1t1)BitmapScan(b1t2)BitmapScan(b1t3)BitmapScan(b1t4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1), (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b1t3)
-BitmapScan(b1t4)
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------------
Aggregate
InitPlan 1 (returns $2)
-> Aggregate
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (b1t1.c1 = b1t2.c1)
+ -> Seq Scan on t1 b1t1
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 b1t2
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = b1t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b1t2.c1)
- -> Bitmap Heap Scan on t3 b1t3
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b1t1.c1)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- -> Nested Loop
- -> Nested Loop
+ Join Filter: (b1t2.c1 = b1t3.c1)
+ -> Nested Loop
+ -> Seq Scan on t2 b1t2
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t4.c1)
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 bmt2
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt2.c1)
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
-(35 rows)
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(31 rows)
-- No. S-2-1-2
EXPLAIN (COSTS false)
)
FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------
Aggregate
- InitPlan 1 (returns $0)
+ InitPlan 1 (returns $1)
-> Aggregate
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (b1t1.c1 = b1t4.c1)
+ Merge Cond: (b1t1.c1 = b1t2.c1)
-> Merge Join
Merge Cond: (b1t1.c1 = b1t3.c1)
- -> Index Scan using t1_i1 on t1 b1t1
- -> Index Scan using t3_i1 on t3 b1t3
- -> Index Scan using t4_i1 on t4 b1t4
- -> Sort
- Sort Key: b1t2.c1
- -> Seq Scan on t2 b1t2
- InitPlan 2 (returns $1)
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ -> Index Only Scan using t3_i1 on t3 b1t3
+ -> Sort
+ Sort Key: b1t2.c1
+ -> Seq Scan on t2 b1t2
+ -> Index Only Scan using t4_i1 on t4 b1t4
+ Index Cond: (c1 = b1t1.c1)
+ InitPlan 2 (returns $3)
-> Aggregate
- -> Merge Join
- Merge Cond: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (b2t1.c1 = b2t4.c1)
+ Merge Cond: (b2t1.c1 = b2t2.c1)
-> Merge Join
Merge Cond: (b2t1.c1 = b2t3.c1)
- -> Index Scan using t1_i1 on t1 b2t1
- -> Index Scan using t3_i1 on t3 b2t3
- -> Index Scan using t4_i1 on t4 b2t4
- -> Sort
- Sort Key: b2t2.c1
- -> Seq Scan on t2 b2t2
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
+ -> Index Only Scan using t1_i1 on t1 b2t1
+ -> Index Only Scan using t3_i1 on t3 b2t3
+ -> Sort
+ Sort Key: b2t2.c1
+ -> Seq Scan on t2 b2t2
+ -> Index Only Scan using t4_i1 on t4 b2t4
+ Index Cond: (c1 = b2t1.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Merge Cond: (bmt1.c1 = bmt2.c1)
-> Merge Join
Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ -> Sort
+ Sort Key: bmt2.c1
+ -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
(41 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)
-BitmapScan(b1t1)BitmapScan(b1t2)BitmapScan(b1t3)BitmapScan(b1t4)
-BitmapScan(b2t1)BitmapScan(b2t2)BitmapScan(b2t3)BitmapScan(b2t4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_pkey)
+*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1), (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
;
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b1t3)
-BitmapScan(b1t4)
-BitmapScan(b2t1)
-BitmapScan(b2t2)
-BitmapScan(b2t3)
-BitmapScan(b2t4)
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------------------------
+ QUERY PLAN
+---------------------------------------------------------------------------
Aggregate
InitPlan 1 (returns $2)
-> Aggregate
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (b1t1.c1 = b1t2.c1)
+ -> Seq Scan on t1 b1t1
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 b1t2
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = b1t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b1t2.c1)
- -> Bitmap Heap Scan on t3 b1t3
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b1t1.c1)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- InitPlan 2 (returns $3)
+ Join Filter: (b1t2.c1 = b1t3.c1)
+ -> Nested Loop
+ -> Seq Scan on t2 b1t2
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t4.c1)
+ InitPlan 2 (returns $4)
-> Aggregate
- -> Nested Loop
- -> Nested Loop
- -> Nested Loop
- -> Index Scan using t2_i1 on t2 b2t2
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: (c1 = b2t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b2t2.c1)
- -> Bitmap Heap Scan on t3 b2t3
- Recheck Cond: (c1 = b2t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b2t1.c1)
- -> Bitmap Heap Scan on t4 b2t4
- Recheck Cond: (c1 = b2t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b2t1.c1)
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (b2t3.c1 = b2t1.c1)
+ -> Seq Scan on t3 b2t3
+ -> Hash
+ -> Merge Join
+ Merge Cond: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
+ -> Index Scan using t4_pkey on t4 b2t4
+ -> Bitmap Heap Scan on t1 b2t1
+ Recheck Cond: (c1 = b2t4.c1)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = b2t4.c1)
+ -> Sort
+ Sort Key: b2t2.c1
+ -> Seq Scan on t2 b2t2
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 bmt2
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt2.c1)
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
-(53 rows)
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(48 rows)
-- No. S-2-1-3
EXPLAIN (COSTS false) SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, (SELECT * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = sbmt4.c1;
- QUERY PLAN
------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------
Aggregate
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Merge Cond: (bmt1.c1 = bmt2.c1)
-> Merge Join
Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ -> Sort
+ Sort Key: bmt2.c1
+ -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
(13 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+*/
EXPLAIN (COSTS false) SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, (SELECT * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = sbmt4.c1;
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------------
Aggregate
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 bmt2
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt2.c1)
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
-(17 rows)
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(15 rows)
-- No. S-2-1-4
EXPLAIN (COSTS false) SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, (SELECT * FROM s1.t3 bmt3) sbmt3, (SELECT * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
- QUERY PLAN
------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------
Aggregate
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Merge Cond: (bmt1.c1 = bmt2.c1)
-> Merge Join
Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ -> Sort
+ Sort Key: bmt2.c1
+ -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
(13 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+*/
EXPLAIN (COSTS false) SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, (SELECT * FROM s1.t3 bmt3) sbmt3, (SELECT * FROM s1.t4 bmt4) sbmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = sbmt3.c1 AND bmt1.c1 = sbmt4.c1;
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------------
Aggregate
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 bmt2
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt2.c1)
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
-(17 rows)
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(15 rows)
-- No. S-2-1-5
EXPLAIN (COSTS false)
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------
Aggregate
- InitPlan 1 (returns $0)
+ InitPlan 1 (returns $1)
-> Aggregate
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (b1t1.c1 = b1t4.c1)
+ Merge Cond: (b1t1.c1 = b1t2.c1)
-> Merge Join
Merge Cond: (b1t1.c1 = b1t3.c1)
- -> Index Scan using t1_i1 on t1 b1t1
- -> Index Scan using t3_i1 on t3 b1t3
- -> Index Scan using t4_i1 on t4 b1t4
- -> Sort
- Sort Key: b1t2.c1
- -> Seq Scan on t2 b1t2
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ -> Index Only Scan using t3_i1 on t3 b1t3
+ -> Sort
+ Sort Key: b1t2.c1
+ -> Seq Scan on t2 b1t2
+ -> Index Only Scan using t4_i1 on t4 b1t4
+ Index Cond: (c1 = b1t1.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Merge Cond: (bmt1.c1 = bmt2.c1)
-> Merge Join
Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- Filter: (c1 <> $0)
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ Filter: (c1 <> $1)
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ -> Sort
+ Sort Key: bmt2.c1
+ -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
(28 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)
-BitmapScan(b1t1)BitmapScan(b1t2)BitmapScan(b1t3)BitmapScan(b1t4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 <> (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
)
;
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b1t3)
-BitmapScan(b1t4)
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------------
Aggregate
InitPlan 1 (returns $2)
-> Aggregate
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (b1t1.c1 = b1t2.c1)
+ -> Seq Scan on t1 b1t1
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 b1t2
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = b1t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b1t2.c1)
- -> Bitmap Heap Scan on t3 b1t3
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b1t1.c1)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- -> Nested Loop
- -> Nested Loop
+ Join Filter: (b1t2.c1 = b1t3.c1)
+ -> Nested Loop
+ -> Seq Scan on t2 b1t2
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t4.c1)
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 bmt2
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt2.c1)
- Filter: (c1 <> $2)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt2.c1)
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
-(36 rows)
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ Filter: (c1 <> $2)
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(32 rows)
-- No. S-2-1-6
EXPLAIN (COSTS false)
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------
Aggregate
- InitPlan 1 (returns $0)
+ InitPlan 1 (returns $1)
-> Aggregate
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (b1t1.c1 = b1t4.c1)
+ Merge Cond: (b1t1.c1 = b1t2.c1)
-> Merge Join
Merge Cond: (b1t1.c1 = b1t3.c1)
- -> Index Scan using t1_i1 on t1 b1t1
- -> Index Scan using t3_i1 on t3 b1t3
- -> Index Scan using t4_i1 on t4 b1t4
- -> Sort
- Sort Key: b1t2.c1
- -> Seq Scan on t2 b1t2
- InitPlan 2 (returns $1)
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ -> Index Only Scan using t3_i1 on t3 b1t3
+ -> Sort
+ Sort Key: b1t2.c1
+ -> Seq Scan on t2 b1t2
+ -> Index Only Scan using t4_i1 on t4 b1t4
+ Index Cond: (c1 = b1t1.c1)
+ InitPlan 2 (returns $3)
-> Aggregate
- -> Merge Join
- Merge Cond: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (b2t1.c1 = b2t4.c1)
+ Merge Cond: (b2t1.c1 = b2t2.c1)
-> Merge Join
Merge Cond: (b2t1.c1 = b2t3.c1)
- -> Index Scan using t1_i1 on t1 b2t1
- -> Index Scan using t3_i1 on t3 b2t3
- -> Index Scan using t4_i1 on t4 b2t4
- -> Sort
- Sort Key: b2t2.c1
- -> Seq Scan on t2 b2t2
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
+ -> Index Only Scan using t1_i1 on t1 b2t1
+ -> Index Only Scan using t3_i1 on t3 b2t3
+ -> Sort
+ Sort Key: b2t2.c1
+ -> Seq Scan on t2 b2t2
+ -> Index Only Scan using t4_i1 on t4 b2t4
+ Index Cond: (c1 = b2t1.c1)
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Merge Cond: (bmt1.c1 = bmt2.c1)
-> Merge Join
Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- Filter: ((c1 <> $0) AND (c1 <> $1))
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ Filter: ((c1 <> $1) AND (c1 <> $3))
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ -> Sort
+ Sort Key: bmt2.c1
+ -> Seq Scan on t2 bmt2
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
(42 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)
-BitmapScan(b1t1)BitmapScan(b1t2)BitmapScan(b1t3)BitmapScan(b1t4)
-BitmapScan(b2t1)BitmapScan(b2t2)BitmapScan(b2t3)BitmapScan(b2t4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_pkey)
+*/
EXPLAIN (COSTS false)
SELECT max(bmt1.c1) FROM s1.t1 bmt1, s1.t2 bmt2, s1.t3 bmt3, s1.t4 bmt4 WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 <> (
SELECT max(b2t1.c1) FROM s1.t1 b2t1, s1.t2 b2t2, s1.t3 b2t3, s1.t4 b2t4 WHERE b2t1.c1 = b2t2.c1 AND b2t1.c1 = b2t3.c1 AND b2t1.c1 = b2t4.c1
)
;
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b1t3)
-BitmapScan(b1t4)
-BitmapScan(b2t1)
-BitmapScan(b2t2)
-BitmapScan(b2t3)
-BitmapScan(b2t4)
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------------------------
+ QUERY PLAN
+---------------------------------------------------------------------------
Aggregate
InitPlan 1 (returns $2)
-> Aggregate
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (b1t1.c1 = b1t2.c1)
+ -> Seq Scan on t1 b1t1
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 b1t2
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = b1t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b1t2.c1)
- -> Bitmap Heap Scan on t3 b1t3
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b1t1.c1)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- InitPlan 2 (returns $3)
+ Join Filter: (b1t2.c1 = b1t3.c1)
+ -> Nested Loop
+ -> Seq Scan on t2 b1t2
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t4.c1)
+ InitPlan 2 (returns $4)
-> Aggregate
- -> Nested Loop
- -> Nested Loop
- -> Nested Loop
- -> Index Scan using t2_i1 on t2 b2t2
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: (c1 = b2t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b2t2.c1)
- -> Bitmap Heap Scan on t3 b2t3
- Recheck Cond: (c1 = b2t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b2t1.c1)
- -> Bitmap Heap Scan on t4 b2t4
- Recheck Cond: (c1 = b2t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b2t1.c1)
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (b2t3.c1 = b2t1.c1)
+ -> Seq Scan on t3 b2t3
+ -> Hash
+ -> Merge Join
+ Merge Cond: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
+ -> Index Scan using t4_pkey on t4 b2t4
+ -> Bitmap Heap Scan on t1 b2t1
+ Recheck Cond: (c1 = b2t4.c1)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = b2t4.c1)
+ -> Sort
+ Sort Key: b2t2.c1
+ -> Seq Scan on t2 b2t2
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Index Scan using t2_i1 on t2 bmt2
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt2.c1)
- Filter: ((c1 <> $2) AND (c1 <> $3))
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt2.c1)
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
-(54 rows)
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ Filter: ((c1 <> $2) AND (c1 <> $4))
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(49 rows)
-- No. S-2-1-7
EXPLAIN (COSTS false)
WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 = c1.c1
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t2.c1)
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t4.c1)
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t3.c1)
- -> Index Scan using t1_i1 on t1 b1t1
- -> Index Scan using t3_i1 on t3 b1t3
- -> Index Scan using t4_i1 on t4 b1t4
- -> Sort
- Sort Key: b1t2.c1
- -> Seq Scan on t2 b1t2
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Hash Join
- Hash Cond: (bmt2.c1 = c1.c1)
- -> Seq Scan on t2 bmt2
- -> Hash
- -> CTE Scan on c1
-(31 rows)
+ -> Nested Loop
+ -> Nested Loop
+ -> Nested Loop
+ -> Hash Join
+ Hash Cond: (bmt2.c1 = (max(b1t1.c1)))
+ -> Seq Scan on t2 bmt2
+ -> Hash
+ -> Aggregate
+ -> Nested Loop
+ -> Merge Join
+ Merge Cond: (b1t1.c1 = b1t2.c1)
+ -> Merge Join
+ Merge Cond: (b1t1.c1 = b1t3.c1)
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ -> Index Only Scan using t3_i1 on t3 b1t3
+ -> Sort
+ Sort Key: b1t2.c1
+ -> Seq Scan on t2 b1t2
+ -> Index Only Scan using t4_i1 on t4 b1t4
+ Index Cond: (c1 = b1t1.c1)
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ Index Cond: (c1 = bmt2.c1)
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ Index Cond: (c1 = bmt1.c1)
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
+(27 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)
-BitmapScan(b1t1)BitmapScan(b1t2)BitmapScan(b1t3)BitmapScan(b1t4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
WHERE bmt1.c1 = bmt2.c1 AND bmt1.c1 = bmt3.c1 AND bmt1.c1 = bmt4.c1
AND bmt1.c1 = c1.c1
;
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b1t3)
-BitmapScan(b1t4)
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- -> Nested Loop
- -> Nested Loop
- -> Index Scan using t2_i1 on t2 b1t2
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = b1t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b1t2.c1)
- -> Bitmap Heap Scan on t3 b1t3
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b1t1.c1)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- -> Nested Loop
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
- -> Nested Loop
- -> CTE Scan on c1
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = c1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = c1.c1)
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt3.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt3.c1)
- -> Bitmap Heap Scan on t4 bmt4
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t2 bmt2
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = bmt1.c1)
-(40 rows)
+ -> Merge Join
+ Merge Cond: (bmt1.c1 = (max(b1t1.c1)))
+ -> Sort
+ Sort Key: bmt1.c1
+ -> Hash Join
+ Hash Cond: (bmt1.c1 = bmt2.c1)
+ -> Seq Scan on t1 bmt1
+ -> Hash
+ -> Index Scan using t2_pkey on t2 bmt2
+ -> Sort
+ Sort Key: (max(b1t1.c1))
+ -> Aggregate
+ -> Hash Join
+ Hash Cond: (b1t1.c1 = b1t2.c1)
+ -> Seq Scan on t1 b1t1
+ -> Hash
+ -> Nested Loop
+ Join Filter: (b1t2.c1 = b1t3.c1)
+ -> Nested Loop
+ -> Seq Scan on t2 b1t2
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t4.c1)
+ -> Bitmap Heap Scan on t3 bmt3
+ Recheck Cond: (c1 = bmt1.c1)
+ -> Bitmap Index Scan on t3_pkey
+ Index Cond: (c1 = bmt1.c1)
+(36 rows)
-- No. S-2-1-8
EXPLAIN (COSTS false)
AND bmt1.c1 = c1.c1
AND bmt1.c1 = c2.c1
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t2.c1)
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t4.c1)
- -> Merge Join
- Merge Cond: (b1t1.c1 = b1t3.c1)
- -> Index Scan using t1_i1 on t1 b1t1
- -> Index Scan using t3_i1 on t3 b1t3
- -> Index Scan using t4_i1 on t4 b1t4
- -> Sort
- Sort Key: b1t2.c1
- -> Seq Scan on t2 b1t2
- CTE c2
- -> Aggregate
- -> Merge Join
- Merge Cond: (b2t1.c1 = b2t2.c1)
- -> Merge Join
- Merge Cond: (b2t1.c1 = b2t4.c1)
- -> Merge Join
- Merge Cond: (b2t1.c1 = b2t3.c1)
- -> Index Scan using t1_i1 on t1 b2t1
- -> Index Scan using t3_i1 on t3 b2t3
- -> Index Scan using t4_i1 on t4 b2t4
- -> Sort
- Sort Key: b2t2.c1
- -> Seq Scan on t2 b2t2
-> Nested Loop
- Join Filter: (bmt1.c1 = c2.c1)
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt2.c1)
- -> Merge Join
- Merge Cond: (bmt1.c1 = bmt4.c1)
+ Join Filter: (bmt1.c1 = (max(b2t1.c1)))
+ -> Nested Loop
+ -> Nested Loop
+ -> Nested Loop
+ -> Hash Join
+ Hash Cond: (bmt2.c1 = (max(b1t1.c1)))
+ -> Seq Scan on t2 bmt2
+ -> Hash
+ -> Aggregate
+ -> Nested Loop
+ -> Merge Join
+ Merge Cond: (b1t1.c1 = b1t2.c1)
+ -> Merge Join
+ Merge Cond: (b1t1.c1 = b1t3.c1)
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ -> Index Only Scan using t3_i1 on t3 b1t3
+ -> Sort
+ Sort Key: b1t2.c1
+ -> Seq Scan on t2 b1t2
+ -> Index Only Scan using t4_i1 on t4 b1t4
+ Index Cond: (c1 = b1t1.c1)
+ -> Index Only Scan using t1_i1 on t1 bmt1
+ Index Cond: (c1 = bmt2.c1)
+ -> Index Only Scan using t3_i1 on t3 bmt3
+ Index Cond: (c1 = bmt1.c1)
+ -> Index Only Scan using t4_i1 on t4 bmt4
+ Index Cond: (c1 = bmt1.c1)
+ -> Aggregate
+ -> Nested Loop
-> Merge Join
- Merge Cond: (bmt1.c1 = bmt3.c1)
- -> Index Scan using t1_i1 on t1 bmt1
- -> Index Scan using t3_i1 on t3 bmt3
- -> Index Scan using t4_i1 on t4 bmt4
- -> Sort
- Sort Key: bmt2.c1
- -> Hash Join
- Hash Cond: (bmt2.c1 = c1.c1)
- -> Seq Scan on t2 bmt2
- -> Hash
- -> CTE Scan on c1
- -> CTE Scan on c2
-(48 rows)
+ Merge Cond: (b2t1.c1 = b2t2.c1)
+ -> Merge Join
+ Merge Cond: (b2t1.c1 = b2t3.c1)
+ -> Index Only Scan using t1_i1 on t1 b2t1
+ -> Index Only Scan using t3_i1 on t3 b2t3
+ -> Sort
+ Sort Key: b2t2.c1
+ -> Seq Scan on t2 b2t2
+ -> Index Only Scan using t4_i1 on t4 b2t4
+ Index Cond: (c1 = b2t1.c1)
+(42 rows)
-/*+BitmapScan(bmt1)BitmapScan(bmt2)BitmapScan(bmt3)BitmapScan(bmt4)
-BitmapScan(b1t1)BitmapScan(b1t2)BitmapScan(b1t3)BitmapScan(b1t4)
-BitmapScan(b2t1)BitmapScan(b2t2)BitmapScan(b2t3)BitmapScan(b2t4)*/
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_pkey)
+*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1, s1.t2 b1t2, s1.t3 b1t3, s1.t4 b1t4 WHERE b1t1.c1 = b1t2.c1 AND b1t1.c1 = b1t3.c1 AND b1t1.c1 = b1t4.c1
AND bmt1.c1 = c1.c1
AND bmt1.c1 = c2.c1
;
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b1t3)
-BitmapScan(b1t4)
-BitmapScan(b2t1)
-BitmapScan(b2t2)
-BitmapScan(b2t3)
-BitmapScan(b2t4)
-BitmapScan(bmt1)
-BitmapScan(bmt2)
-BitmapScan(bmt3)
-BitmapScan(bmt4)
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+SeqScan(bmt1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
+TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------------------------
+ QUERY PLAN
+-------------------------------------------------------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- -> Nested Loop
- -> Nested Loop
- -> Index Scan using t2_i1 on t2 b1t2
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = b1t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b1t2.c1)
- -> Bitmap Heap Scan on t3 b1t3
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b1t1.c1)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- CTE c2
- -> Aggregate
- -> Nested Loop
- -> Nested Loop
- -> Nested Loop
- -> Index Scan using t2_i1 on t2 b2t2
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: (c1 = b2t2.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b2t2.c1)
- -> Bitmap Heap Scan on t3 b2t3
- Recheck Cond: (c1 = b2t1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = b2t1.c1)
- -> Bitmap Heap Scan on t4 b2t4
- Recheck Cond: (c1 = b2t1.c1)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b2t1.c1)
- -> Nested Loop
- Join Filter: (bmt1.c1 = c2.c1)
- -> Nested Loop
+ -> Hash Join
+ Hash Cond: (bmt4.c1 = bmt1.c1)
+ -> Seq Scan on t4 bmt4
+ -> Hash
-> Nested Loop
-> Nested Loop
-> Nested Loop
- -> CTE Scan on c1
- -> Bitmap Heap Scan on t3 bmt3
- Recheck Cond: (c1 = c1.c1)
- -> Bitmap Index Scan on t3_i1
- Index Cond: (c1 = c1.c1)
- -> Bitmap Heap Scan on t1 bmt1
- Recheck Cond: (c1 = bmt3.c1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = bmt3.c1)
- -> Bitmap Heap Scan on t4 bmt4
+ Join Filter: ((max(b1t1.c1)) = bmt1.c1)
+ -> Merge Join
+ Merge Cond: ((max(b1t1.c1)) = (max(b2t1.c1)))
+ -> Sort
+ Sort Key: (max(b1t1.c1))
+ -> Aggregate
+ -> Hash Join
+ Hash Cond: (b1t1.c1 = b1t2.c1)
+ -> Seq Scan on t1 b1t1
+ -> Hash
+ -> Nested Loop
+ Join Filter: (b1t2.c1 = b1t3.c1)
+ -> Nested Loop
+ -> Seq Scan on t2 b1t2
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t4.c1)
+ -> Sort
+ Sort Key: (max(b2t1.c1))
+ -> Aggregate
+ -> Hash Join
+ Hash Cond: (b2t3.c1 = b2t1.c1)
+ -> Seq Scan on t3 b2t3
+ -> Hash
+ -> Merge Join
+ Merge Cond: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
+ -> Index Scan using t4_pkey on t4 b2t4
+ -> Bitmap Heap Scan on t1 b2t1
+ Recheck Cond: (c1 = b2t4.c1)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = b2t4.c1)
+ -> Sort
+ Sort Key: b2t2.c1
+ -> Seq Scan on t2 b2t2
+ -> Seq Scan on t1 bmt1
+ -> Index Scan using t2_pkey on t2 bmt2
+ Index Cond: (c1 = bmt1.c1)
+ -> Bitmap Heap Scan on t3 bmt3
Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t4_i1
+ -> Bitmap Index Scan on t3_pkey
Index Cond: (c1 = bmt1.c1)
- -> Bitmap Heap Scan on t2 bmt2
- Recheck Cond: (c1 = bmt1.c1)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = bmt1.c1)
- -> CTE Scan on c2
-(61 rows)
+(53 rows)
----
---- No. S-2-2 the number of the tables per quiry block
QUERY PLAN
-----------------------------------------------------------------
Aggregate
- CTE c1
+ InitPlan 2 (returns $1)
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Tid Scan on t1 b1t1
+ -> Tid Scan on t1 b2t1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((c1 IS NOT NULL) AND (c1 = 1))
InitPlan 4 (returns $3)
-> Result
InitPlan 3 (returns $2)
-> Limit
- -> Tid Scan on t1 b2t1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 6 (returns $5)
- -> Result
- InitPlan 5 (returns $4)
- -> Limit
-> Tid Scan on t1 b3t1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((c1 IS NOT NULL) AND (c1 = 1))
-> Nested Loop
-> Tid Scan on t1 bmt1
TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((c1 <> $5) AND (c1 = 1))
- -> CTE Scan on c1
-(27 rows)
+ Filter: ((c1 <> $3) AND (c1 = 1))
+ -> Result
+(20 rows)
/*+SeqScan(bmt1)
TidScan(b1t1)
-BitmapScan(b2t1 t1_i1)
-IndexScan(b3t1 t1_i1)
+BitmapScan(b2t1 t1_pkey)
+IndexScan(b3t1 t1_pkey)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b3t1.c1) FROM s1.t1 b3t1 WHERE b3t1.ctid = '(1,1)' AND b3t1.c1 = 1
)
;
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b3t1): t1_pkey
+LOG: available indexes for IndexScan(b3t1): t1_pkey
LOG: pg_hint_plan:
used hint:
TidScan(b1t1)
-BitmapScan(b2t1 t1_i1)
-IndexScan(b3t1 t1_i1)
+BitmapScan(b2t1 t1_pkey)
+IndexScan(b3t1 t1_pkey)
SeqScan(bmt1)
not used hint:
duplication hint:
QUERY PLAN
---------------------------------------------------------------------------
Aggregate
- CTE c1
+ InitPlan 2 (returns $1)
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 4 (returns $3)
- -> Result
- InitPlan 3 (returns $2)
- -> Limit
-> Bitmap Heap Scan on t1 b2t1
Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t1_i1
+ -> Bitmap Index Scan on t1_pkey
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 6 (returns $5)
+ InitPlan 4 (returns $3)
-> Result
- InitPlan 5 (returns $4)
+ InitPlan 3 (returns $2)
-> Limit
- -> Index Scan using t1_i1 on t1 b3t1
+ -> Index Scan using t1_pkey on t1 b3t1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
Filter: (ctid = '(1,1)'::tid)
-> Nested Loop
-> Seq Scan on t1 bmt1
- Filter: ((c1 <> $5) AND (ctid = '(1,1)'::tid) AND (c1 = 1))
- -> CTE Scan on c1
-(28 rows)
+ Filter: ((c1 <> $3) AND (ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Result
+(21 rows)
-- No. S-2-2-2
EXPLAIN (COSTS false)
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2 WHERE b3t1.ctid = '(1,1)' AND b3t1.c1 = b3t2.c1 AND b3t2.ctid = '(1,1)'
)
;
- QUERY PLAN
--------------------------------------------------------
+ QUERY PLAN
+-----------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t2.c1)
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- -> Seq Scan on t2 b1t2
- Filter: (ctid = '(1,1)'::tid)
- InitPlan 2 (returns $1)
+ InitPlan 1 (returns $0)
-> Aggregate
-> Nested Loop
Join Filter: (b2t1.c1 = b2t2.c1)
TID Cond: (ctid = '(1,1)'::tid)
-> Seq Scan on t2 b2t2
Filter: (ctid = '(1,1)'::tid)
- InitPlan 3 (returns $2)
+ InitPlan 2 (returns $1)
-> Aggregate
-> Nested Loop
Join Filter: (b3t1.c1 = b3t2.c1)
Join Filter: (bmt1.c1 = bmt2.c1)
-> Tid Scan on t1 bmt1
TID Cond: (ctid = '(1,1)'::tid)
- Filter: (c1 <> $2)
+ Filter: (c1 <> $1)
-> Seq Scan on t2 bmt2
Filter: (ctid = '(1,1)'::tid)
- -> CTE Scan on c1
-(34 rows)
+ -> Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+(32 rows)
-/*+SeqScan(bmt1)IndexScan(bmt2 t2_i1)
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)
TidScan(b1t1)SeqScan(b1t2)
-BitmapScan(b2t1 t1_i1)TidScan(b2t2)
-IndexScan(b3t1 t1_i1)BitmapScan(b3t2 t2_i1)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)
+IndexScan(b3t1 t1_pkey)BitmapScan(b3t2 t2_pkey)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2 WHERE b3t1.ctid = '(1,1)' AND b3t1.c1 = b3t2.c1 AND b3t2.ctid = '(1,1)'
)
;
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b3t1): t1_pkey
+LOG: available indexes for BitmapScan(b3t2): t2_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
LOG: pg_hint_plan:
used hint:
TidScan(b1t1)
SeqScan(b1t2)
-BitmapScan(b2t1 t1_i1)
+BitmapScan(b2t1 t1_pkey)
TidScan(b2t2)
-IndexScan(b3t1 t1_i1)
-BitmapScan(b3t2 t2_i1)
+IndexScan(b3t1 t1_pkey)
+BitmapScan(b3t2 t2_pkey)
SeqScan(bmt1)
-IndexScan(bmt2 t2_i1)
+IndexScan(bmt2 t2_pkey)
not used hint:
duplication hint:
error hint:
QUERY PLAN
--------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t2.c1)
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- -> Seq Scan on t2 b1t2
- Filter: (ctid = '(1,1)'::tid)
- InitPlan 2 (returns $2)
+ InitPlan 1 (returns $1)
-> Aggregate
-> Nested Loop
-> Tid Scan on t2 b2t2
-> Bitmap Heap Scan on t1 b2t1
Recheck Cond: (c1 = b2t2.c1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t1_i1
+ -> Bitmap Index Scan on t1_pkey
Index Cond: (c1 = b2t2.c1)
- InitPlan 3 (returns $4)
+ InitPlan 2 (returns $3)
-> Aggregate
-> Nested Loop
- -> Index Scan using t1_i1 on t1 b3t1
+ -> Index Scan using t1_pkey on t1 b3t1
Filter: (ctid = '(1,1)'::tid)
-> Bitmap Heap Scan on t2 b3t2
Recheck Cond: (c1 = b3t1.c1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t2_i1
+ -> Bitmap Index Scan on t2_pkey
Index Cond: (c1 = b3t1.c1)
-> Nested Loop
-> Nested Loop
+ Join Filter: (bmt1.c1 = bmt2.c1)
-> Seq Scan on t1 bmt1
- Filter: ((c1 <> $4) AND (ctid = '(1,1)'::tid))
- -> Index Scan using t2_i1 on t2 bmt2
- Index Cond: (c1 = bmt1.c1)
+ Filter: ((c1 <> $3) AND (ctid = '(1,1)'::tid))
+ -> Index Scan using t2_pkey on t2 bmt2
Filter: (ctid = '(1,1)'::tid)
- -> CTE Scan on c1
-(37 rows)
+ -> Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+(35 rows)
-- No. S-2-2-3
EXPLAIN (COSTS false)
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.ctid = '(1,1)' AND b3t1.c1 = b3t2.c1 AND b3t2.ctid = '(1,1)' AND b3t1.c1 = b3t3.c1 AND b3t3.ctid = '(1,1)' AND b3t1.c1 = b3t4.c1 AND b3t4.ctid = '(1,1)'
)
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+-----------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t4.c1)
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t3.c1)
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t2.c1)
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- -> Seq Scan on t2 b1t2
- Filter: (ctid = '(1,1)'::tid)
- -> Tid Scan on t3 b1t3
- TID Cond: (ctid = '(1,1)'::tid)
- -> Tid Scan on t4 b1t4
- TID Cond: (ctid = '(1,1)'::tid)
- InitPlan 2 (returns $1)
+ InitPlan 1 (returns $0)
-> Aggregate
-> Nested Loop
Join Filter: (b2t1.c1 = b2t4.c1)
TID Cond: (ctid = '(1,1)'::tid)
-> Tid Scan on t4 b2t4
TID Cond: (ctid = '(1,1)'::tid)
- InitPlan 3 (returns $2)
+ InitPlan 2 (returns $1)
-> Aggregate
-> Nested Loop
Join Filter: (b3t1.c1 = b3t4.c1)
-> Tid Scan on t4 b3t4
TID Cond: (ctid = '(1,1)'::tid)
-> Nested Loop
- Join Filter: (bmt1.c1 = c1.c1)
+ Join Filter: (bmt1.c1 = (max(b1t1.c1)))
-> Nested Loop
- Join Filter: (bmt1.c1 = bmt2.c1)
+ Join Filter: (bmt1.c1 = bmt4.c1)
-> Nested Loop
- Join Filter: (bmt3.c1 = bmt1.c1)
+ Join Filter: (bmt1.c1 = bmt3.c1)
-> Nested Loop
- Join Filter: (bmt3.c1 = bmt4.c1)
- -> Tid Scan on t3 bmt3
+ Join Filter: (bmt1.c1 = bmt2.c1)
+ -> Tid Scan on t1 bmt1
TID Cond: (ctid = '(1,1)'::tid)
- -> Tid Scan on t4 bmt4
+ Filter: (c1 <> $1)
+ -> Seq Scan on t2 bmt2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 bmt3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 bmt4
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b1t3
TID Cond: (ctid = '(1,1)'::tid)
- -> Tid Scan on t1 bmt1
+ -> Tid Scan on t4 b1t4
TID Cond: (ctid = '(1,1)'::tid)
- Filter: (c1 <> $2)
- -> Seq Scan on t2 bmt2
- Filter: (ctid = '(1,1)'::tid)
- -> CTE Scan on c1
-(67 rows)
+(65 rows)
-/*+SeqScan(bmt1)IndexScan(bmt2 t2_i1)BitmapScan(bmt3 t3_i1)TidScan(bmt4)
-TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_i1)BitmapScan(b1t4 t4_i1)
-BitmapScan(b2t1 t1_i1)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_i1)
-IndexScan(b3t1 t1_i1)BitmapScan(b3t2 t2_i1)TidScan(b3t3)SeqScan(b3t4)
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_pkey)
+IndexScan(b3t1 t1_pkey)BitmapScan(b3t2 t2_pkey)TidScan(b3t3)SeqScan(b3t4)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b3t1.c1) FROM s1.t1 b3t1, s1.t2 b3t2, s1.t3 b3t3, s1.t4 b3t4 WHERE b3t1.ctid = '(1,1)' AND b3t1.c1 = b3t2.c1 AND b3t2.ctid = '(1,1)' AND b3t1.c1 = b3t3.c1 AND b3t3.ctid = '(1,1)' AND b3t1.c1 = b3t4.c1 AND b3t4.ctid = '(1,1)'
)
;
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t4): t4_pkey
+LOG: available indexes for IndexScan(b3t1): t1_pkey
+LOG: available indexes for BitmapScan(b3t2): t2_pkey
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
TidScan(b1t1)
SeqScan(b1t2)
-IndexScan(b1t3 t3_i1)
-BitmapScan(b1t4 t4_i1)
-BitmapScan(b2t1 t1_i1)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
TidScan(b2t2)
SeqScan(b2t3)
-IndexScan(b2t4 t4_i1)
-IndexScan(b3t1 t1_i1)
-BitmapScan(b3t2 t2_i1)
+IndexScan(b2t4 t4_pkey)
+IndexScan(b3t1 t1_pkey)
+BitmapScan(b3t2 t2_pkey)
TidScan(b3t3)
SeqScan(b3t4)
SeqScan(bmt1)
-IndexScan(bmt2 t2_i1)
-BitmapScan(bmt3 t3_i1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
---------------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- -> Nested Loop
- Join Filter: (b1t2.c1 = b1t1.c1)
- -> Nested Loop
- -> Seq Scan on t2 b1t2
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using t3_i1 on t3 b1t3
- Index Cond: (c1 = b1t2.c1)
- Filter: (ctid = '(1,1)'::tid)
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- InitPlan 2 (returns $3)
+ InitPlan 1 (returns $2)
-> Aggregate
-> Nested Loop
+ Join Filter: (b2t1.c1 = b2t4.c1)
-> Nested Loop
- Join Filter: (b2t1.c1 = b2t3.c1)
+ Join Filter: (b2t2.c1 = b2t1.c1)
-> Nested Loop
+ Join Filter: (b2t2.c1 = b2t3.c1)
-> Tid Scan on t2 b2t2
TID Cond: (ctid = '(1,1)'::tid)
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: (c1 = b2t2.c1)
+ -> Seq Scan on t3 b2t3
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = b2t2.c1)
- -> Seq Scan on t3 b2t3
+ -> Bitmap Heap Scan on t1 b2t1
+ Recheck Cond: (c1 = b2t3.c1)
Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using t4_i1 on t4 b2t4
- Index Cond: (c1 = b2t1.c1)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = b2t3.c1)
+ -> Index Scan using t4_pkey on t4 b2t4
+ Index Cond: (c1 = b2t2.c1)
Filter: (ctid = '(1,1)'::tid)
- InitPlan 3 (returns $5)
+ InitPlan 2 (returns $5)
-> Aggregate
-> Nested Loop
+ Join Filter: (b3t1.c1 = b3t2.c1)
-> Nested Loop
+ Join Filter: (b3t3.c1 = b3t1.c1)
-> Nested Loop
Join Filter: (b3t3.c1 = b3t4.c1)
-> Tid Scan on t3 b3t3
TID Cond: (ctid = '(1,1)'::tid)
-> Seq Scan on t4 b3t4
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Heap Scan on t2 b3t2
- Recheck Cond: (c1 = b3t3.c1)
+ -> Index Scan using t1_pkey on t1 b3t1
+ Index Cond: (c1 = b3t4.c1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = b3t3.c1)
- -> Index Scan using t1_i1 on t1 b3t1
- Index Cond: (c1 = b3t2.c1)
+ -> Bitmap Heap Scan on t2 b3t2
+ Recheck Cond: (c1 = b3t3.c1)
Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t2_pkey
+ Index Cond: (c1 = b3t3.c1)
-> Nested Loop
- Join Filter: (bmt1.c1 = bmt2.c1)
- -> Nested Loop
- Join Filter: (bmt1.c1 = bmt4.c1)
- -> Seq Scan on t1 bmt1
- Filter: ((c1 <> $5) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on t4 bmt4
- TID Cond: (ctid = '(1,1)'::tid)
+ Join Filter: (bmt1.c1 = (max(b1t1.c1)))
-> Nested Loop
+ Join Filter: (bmt1.c1 = bmt3.c1)
-> Nested Loop
- -> CTE Scan on c1
- -> Index Scan using t2_i1 on t2 bmt2
- Index Cond: (c1 = c1.c1)
+ Join Filter: (bmt1.c1 = bmt2.c1)
+ -> Nested Loop
+ Join Filter: (bmt1.c1 = bmt4.c1)
+ -> Seq Scan on t1 bmt1
+ Filter: ((c1 <> $5) AND (ctid = '(1,1)'::tid))
+ -> Tid Scan on t4 bmt4
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Index Scan using t2_pkey on t2 bmt2
+ Index Cond: (c1 = bmt4.c1)
Filter: (ctid = '(1,1)'::tid)
-> Bitmap Heap Scan on t3 bmt3
Recheck Cond: (c1 = bmt2.c1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t3_i1
+ -> Bitmap Index Scan on t3_pkey
Index Cond: (c1 = bmt2.c1)
-(74 rows)
+ -> Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+(80 rows)
-- No. S-2-2-4
EXPLAIN (COSTS false)
SELECT max(b3t1.c1) FROM s1.t1 b3t1 WHERE b3t1.ctid = '(1,1)'
)
;
- QUERY PLAN
--------------------------------------------------------------------
+ QUERY PLAN
+-----------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t4.c1)
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t3.c1)
- -> Nested Loop
- Join Filter: (b1t1.c1 = b1t2.c1)
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- -> Seq Scan on t2 b1t2
- Filter: (ctid = '(1,1)'::tid)
- -> Tid Scan on t3 b1t3
- TID Cond: (ctid = '(1,1)'::tid)
- -> Tid Scan on t4 b1t4
- TID Cond: (ctid = '(1,1)'::tid)
- InitPlan 3 (returns $2)
+ InitPlan 2 (returns $1)
-> Result
- InitPlan 2 (returns $1)
+ InitPlan 1 (returns $0)
-> Limit
-> Tid Scan on t1 b2t1
TID Cond: (ctid = '(1,1)'::tid)
Filter: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 4 (returns $3)
+ InitPlan 3 (returns $3)
-> Aggregate
-> Tid Scan on t1 b3t1
TID Cond: (ctid = '(1,1)'::tid)
-> Nested Loop
- Join Filter: (bmt1.c1 = c1.c1)
+ Join Filter: (bmt1.c1 = (max(b1t1.c1)))
-> Nested Loop
- Join Filter: (bmt1.c1 = bmt2.c1)
+ Join Filter: (bmt1.c1 = bmt4.c1)
-> Nested Loop
- Join Filter: (bmt3.c1 = bmt1.c1)
+ Join Filter: (bmt1.c1 = bmt3.c1)
-> Nested Loop
- Join Filter: (bmt3.c1 = bmt4.c1)
- -> Tid Scan on t3 bmt3
+ Join Filter: (bmt1.c1 = bmt2.c1)
+ -> Tid Scan on t1 bmt1
TID Cond: (ctid = '(1,1)'::tid)
- -> Tid Scan on t4 bmt4
+ Filter: (c1 <> $3)
+ -> Seq Scan on t2 bmt2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 bmt3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 bmt4
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b1t3
TID Cond: (ctid = '(1,1)'::tid)
- -> Tid Scan on t1 bmt1
+ -> Tid Scan on t4 b1t4
TID Cond: (ctid = '(1,1)'::tid)
- Filter: (c1 <> $3)
- -> Seq Scan on t2 bmt2
- Filter: (ctid = '(1,1)'::tid)
- -> CTE Scan on c1
-(46 rows)
+(44 rows)
-/*+SeqScan(bmt1)IndexScan(bmt2 t2_i1)BitmapScan(bmt3 t3_i1)TidScan(bmt4)
-TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_i1)BitmapScan(b1t4 t4_i1)
-BitmapScan(b2t1 t1_i1)
-IndexScan(b3t1 t1_i1)
+/*+SeqScan(bmt1)IndexScan(bmt2 t2_pkey)BitmapScan(bmt3 t3_pkey)TidScan(bmt4)
+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
+IndexScan(b3t1 t1_pkey)
*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b3t1.c1) FROM s1.t1 b3t1 WHERE b3t1.ctid = '(1,1)'
)
;
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b3t1): t1_pkey
+LOG: available indexes for IndexScan(b3t1): t1_pkey
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: available indexes for IndexScan(bmt2): t2_pkey
+LOG: available indexes for BitmapScan(bmt3): t3_pkey
LOG: pg_hint_plan:
used hint:
TidScan(b1t1)
SeqScan(b1t2)
-IndexScan(b1t3 t3_i1)
-BitmapScan(b1t4 t4_i1)
-BitmapScan(b2t1 t1_i1)
-IndexScan(b3t1 t1_i1)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
+IndexScan(b3t1 t1_pkey)
SeqScan(bmt1)
-IndexScan(bmt2 t2_i1)
-BitmapScan(bmt3 t3_i1)
+IndexScan(bmt2 t2_pkey)
+BitmapScan(bmt3 t3_pkey)
TidScan(bmt4)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------------
+ QUERY PLAN
+--------------------------------------------------------------------------------
Aggregate
- CTE c1
- -> Aggregate
- -> Nested Loop
- -> Nested Loop
- Join Filter: (b1t2.c1 = b1t1.c1)
- -> Nested Loop
- -> Seq Scan on t2 b1t2
- Filter: (ctid = '(1,1)'::tid)
- -> Index Scan using t3_i1 on t3 b1t3
- Index Cond: (c1 = b1t2.c1)
- Filter: (ctid = '(1,1)'::tid)
- -> Tid Scan on t1 b1t1
- TID Cond: (ctid = '(1,1)'::tid)
- -> Bitmap Heap Scan on t4 b1t4
- Recheck Cond: (c1 = b1t1.c1)
- Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t4_i1
- Index Cond: (c1 = b1t1.c1)
- InitPlan 3 (returns $4)
+ InitPlan 2 (returns $1)
-> Result
- InitPlan 2 (returns $3)
+ InitPlan 1 (returns $0)
-> Limit
-> Bitmap Heap Scan on t1 b2t1
Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t1_i1
+ -> Bitmap Index Scan on t1_pkey
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 5 (returns $6)
+ InitPlan 4 (returns $3)
-> Result
- InitPlan 4 (returns $5)
+ InitPlan 3 (returns $2)
-> Limit
- -> Index Scan Backward using t1_i1 on t1 b3t1
+ -> Index Scan Backward using t1_pkey on t1 b3t1
Index Cond: (c1 IS NOT NULL)
Filter: (ctid = '(1,1)'::tid)
-> Nested Loop
- Join Filter: (bmt1.c1 = bmt2.c1)
- -> Nested Loop
- Join Filter: (bmt1.c1 = bmt4.c1)
- -> Seq Scan on t1 bmt1
- Filter: ((c1 <> $6) AND (ctid = '(1,1)'::tid))
- -> Tid Scan on t4 bmt4
- TID Cond: (ctid = '(1,1)'::tid)
+ Join Filter: (bmt1.c1 = (max(b1t1.c1)))
-> Nested Loop
+ Join Filter: (bmt1.c1 = bmt3.c1)
-> Nested Loop
- -> CTE Scan on c1
- -> Index Scan using t2_i1 on t2 bmt2
- Index Cond: (c1 = c1.c1)
+ Join Filter: (bmt1.c1 = bmt2.c1)
+ -> Nested Loop
+ Join Filter: (bmt1.c1 = bmt4.c1)
+ -> Seq Scan on t1 bmt1
+ Filter: ((c1 <> $3) AND (ctid = '(1,1)'::tid))
+ -> Tid Scan on t4 bmt4
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Index Scan using t2_pkey on t2 bmt2
+ Index Cond: (c1 = bmt4.c1)
Filter: (ctid = '(1,1)'::tid)
-> Bitmap Heap Scan on t3 bmt3
Recheck Cond: (c1 = bmt2.c1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on t3_i1
+ -> Bitmap Index Scan on t3_pkey
Index Cond: (c1 = bmt2.c1)
-(54 rows)
+ -> Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+(56 rows)
----
----- No. S-2-3 RULE definition table
+---- No. S-2-3 RULE or VIEW
----
-- No. S-2-3-1
--- TODO
-----
----- No. S-2-4 VALUES clause
-----
--- No. S-2-4-1
-EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1) WHERE t1.c1 = 1;
- QUERY PLAN
----------------------------
- Values Scan on "*VALUES*"
- Filter: (column1 = 1)
-(2 rows)
+EXPLAIN (COSTS false) UPDATE s1.r1 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r1
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4
+ TID Cond: (ctid = '(1,1)'::tid)
+(19 rows)
-/*+SeqScan(t1)*/
+/*+TidScan(t1)SeqScan(t2)IndexScan(t3 t3_pkey)BitmapScan(t4 t4_pkey)
+SeqScan(r1)*/
+EXPLAIN (COSTS false) UPDATE s1.r1 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(t3): t3_pkey
+LOG: available indexes for BitmapScan(t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r1)
+TidScan(t1)
+SeqScan(t2)
+IndexScan(t3 t3_pkey)
+BitmapScan(t4 t4_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r1
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4
+ Recheck Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = t2.c1)
+(22 rows)
+
+EXPLAIN (COSTS false) UPDATE s1.r1_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r1_
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b1t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 b1t4
+ TID Cond: (ctid = '(1,1)'::tid)
+(19 rows)
+
+/*+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+SeqScan(r1_)*/
+EXPLAIN (COSTS false) UPDATE s1.r1_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+SeqScan(r1_)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r1_
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+(22 rows)
+
+-- No. S-2-3-2
+EXPLAIN (COSTS false) UPDATE s1.r2 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4
+ TID Cond: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r2
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4
+ TID Cond: (ctid = '(1,1)'::tid)
+(39 rows)
+
+/*+TidScan(t1)SeqScan(t2)IndexScan(t3 t3_pkey)BitmapScan(t4 t4_pkey)
+SeqScan(r2)*/
+EXPLAIN (COSTS false) UPDATE s1.r2 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(t3): t3_pkey
+LOG: available indexes for BitmapScan(t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r2)
+TidScan(t1)
+SeqScan(t2)
+IndexScan(t3 t3_pkey)
+BitmapScan(t4 t4_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+LOG: available indexes for IndexScan(t3): t3_pkey
+LOG: available indexes for BitmapScan(t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r2)
+TidScan(t1)
+SeqScan(t2)
+IndexScan(t3 t3_pkey)
+BitmapScan(t4 t4_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r2
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4
+ Recheck Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = t2.c1)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r2
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4
+ Recheck Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = t2.c1)
+(45 rows)
+
+EXPLAIN (COSTS false) UPDATE s1.r2_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r2_
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b1t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 b1t4
+ TID Cond: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t4.c1)
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t3.c1)
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r2_
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1 b2t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b2t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b2t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 b2t4
+ TID Cond: (ctid = '(1,1)'::tid)
+(39 rows)
+
+/*+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_pkey)
+SeqScan(r2_)*/
+EXPLAIN (COSTS false) UPDATE s1.r2_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+SeqScan(r2_)
+not used hint:
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+duplication hint:
+error hint:
+
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+SeqScan(r2_)
+not used hint:
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r2_
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t4.c1)
+ -> Nested Loop
+ Join Filter: (b2t2.c1 = b2t1.c1)
+ -> Nested Loop
+ Join Filter: (b2t2.c1 = b2t3.c1)
+ -> Nested Loop
+ -> Seq Scan on r2_
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t2 b2t2
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t3 b2t3
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t1 b2t1
+ Recheck Cond: (c1 = b2t3.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = b2t3.c1)
+ -> Index Scan using t4_pkey on t4 b2t4
+ Index Cond: (c1 = b2t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+(45 rows)
+
+-- No. S-2-3-3
+EXPLAIN (COSTS false) UPDATE s1.r3 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r3
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4
+ TID Cond: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r3
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4
+ TID Cond: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r3
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4
+ TID Cond: (ctid = '(1,1)'::tid)
+(59 rows)
+
+/*+TidScan(t1)SeqScan(t2)IndexScan(t3 t3_pkey)BitmapScan(t4 t4_pkey)
+SeqScan(r3)*/
+EXPLAIN (COSTS false) UPDATE s1.r3 SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(t3): t3_pkey
+LOG: available indexes for BitmapScan(t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r3)
+TidScan(t1)
+SeqScan(t2)
+IndexScan(t3 t3_pkey)
+BitmapScan(t4 t4_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+LOG: available indexes for IndexScan(t3): t3_pkey
+LOG: available indexes for BitmapScan(t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r3)
+TidScan(t1)
+SeqScan(t2)
+IndexScan(t3 t3_pkey)
+BitmapScan(t4 t4_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+LOG: available indexes for IndexScan(t3): t3_pkey
+LOG: available indexes for BitmapScan(t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r3)
+TidScan(t1)
+SeqScan(t2)
+IndexScan(t3 t3_pkey)
+BitmapScan(t4 t4_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r3
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4
+ Recheck Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = t2.c1)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r3
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4
+ Recheck Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = t2.c1)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (t1.c1 = t4.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t3.c1)
+ -> Nested Loop
+ Join Filter: (t1.c1 = t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r3
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3
+ Index Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4
+ Recheck Cond: (c1 = t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = t2.c1)
+(68 rows)
+
+EXPLAIN (COSTS false) UPDATE s1.r3_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+ QUERY PLAN
+-----------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r3_
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b1t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 b1t4
+ TID Cond: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t4.c1)
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t3.c1)
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r3_
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1 b2t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b2t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b2t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 b2t4
+ TID Cond: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b3t1.c1 = b3t4.c1)
+ -> Nested Loop
+ Join Filter: (b3t1.c1 = b3t3.c1)
+ -> Nested Loop
+ Join Filter: (b3t1.c1 = b3t2.c1)
+ -> Nested Loop
+ -> Tid Scan on r3_
+ TID Cond: (ctid = '(1,1)'::tid)
+ Filter: (c1 = 1)
+ -> Tid Scan on t1 b3t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b3t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t3 b3t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Tid Scan on t4 b3t4
+ TID Cond: (ctid = '(1,1)'::tid)
+(59 rows)
+
+/*+TidScan(b1t1)SeqScan(b1t2)IndexScan(b1t3 t3_pkey)BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)TidScan(b2t2)SeqScan(b2t3)IndexScan(b2t4 t4_pkey)
+IndexScan(b3t1 t1_pkey)BitmapScan(b3t2 t2_pkey)TidScan(b3t3)SeqScan(b3t4)
+SeqScan(r3_)*/
+EXPLAIN (COSTS false) UPDATE s1.r3_ SET c1 = c1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(b1t3): t3_pkey
+LOG: available indexes for BitmapScan(b1t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+SeqScan(r3_)
+not used hint:
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+IndexScan(b3t1 t1_pkey)
+BitmapScan(b3t2 t2_pkey)
+TidScan(b3t3)
+SeqScan(b3t4)
+duplication hint:
+error hint:
+
+LOG: available indexes for BitmapScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t4): t4_pkey
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+SeqScan(r3_)
+not used hint:
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+IndexScan(b3t1 t1_pkey)
+BitmapScan(b3t2 t2_pkey)
+TidScan(b3t3)
+SeqScan(b3t4)
+duplication hint:
+error hint:
+
+LOG: available indexes for IndexScan(b3t1): t1_pkey
+LOG: available indexes for BitmapScan(b3t2): t2_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(b3t1 t1_pkey)
+BitmapScan(b3t2 t2_pkey)
+TidScan(b3t3)
+SeqScan(b3t4)
+SeqScan(r3_)
+not used hint:
+TidScan(b1t1)
+SeqScan(b1t2)
+IndexScan(b1t3 t3_pkey)
+BitmapScan(b1t4 t4_pkey)
+BitmapScan(b2t1 t1_pkey)
+TidScan(b2t2)
+SeqScan(b2t3)
+IndexScan(b2t4 t4_pkey)
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t4.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t3.c1)
+ -> Nested Loop
+ Join Filter: (b1t1.c1 = b1t2.c1)
+ -> Nested Loop
+ -> Seq Scan on r3_
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t1 b1t1
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t2 b1t2
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t3_pkey on t3 b1t3
+ Index Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t4 b1t4
+ Recheck Cond: (c1 = b1t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t4_pkey
+ Index Cond: (c1 = b1t2.c1)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b2t1.c1 = b2t4.c1)
+ -> Nested Loop
+ Join Filter: (b2t2.c1 = b2t1.c1)
+ -> Nested Loop
+ Join Filter: (b2t2.c1 = b2t3.c1)
+ -> Nested Loop
+ -> Seq Scan on r3_
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t2 b2t2
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t3 b2t3
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t1 b2t1
+ Recheck Cond: (c1 = b2t3.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = b2t3.c1)
+ -> Index Scan using t4_pkey on t4 b2t4
+ Index Cond: (c1 = b2t2.c1)
+ Filter: (ctid = '(1,1)'::tid)
+
+ Aggregate
+ -> Nested Loop
+ Join Filter: (b3t1.c1 = b3t2.c1)
+ -> Nested Loop
+ Join Filter: (b3t3.c1 = b3t1.c1)
+ -> Nested Loop
+ Join Filter: (b3t3.c1 = b3t4.c1)
+ -> Nested Loop
+ -> Seq Scan on r3_
+ Filter: ((ctid = '(1,1)'::tid) AND (c1 = 1))
+ -> Tid Scan on t3 b3t3
+ TID Cond: (ctid = '(1,1)'::tid)
+ -> Seq Scan on t4 b3t4
+ Filter: (ctid = '(1,1)'::tid)
+ -> Index Scan using t1_pkey on t1 b3t1
+ Index Cond: (c1 = b3t4.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Heap Scan on t2 b3t2
+ Recheck Cond: (c1 = b3t3.c1)
+ Filter: (ctid = '(1,1)'::tid)
+ -> Bitmap Index Scan on t2_pkey
+ Index Cond: (c1 = b3t3.c1)
+(68 rows)
+
+-- No. S-2-3-4
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1 v2 WHERE v1.c1 = v2.c1;
+ QUERY PLAN
+------------------------------------
+ Hash Join
+ Hash Cond: (v1t1.c1 = v1t1_1.c1)
+ -> Seq Scan on t1 v1t1
+ -> Hash
+ -> Seq Scan on t1 v1t1_1
+(5 rows)
+
+/*+BitmapScan(v1t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1 v2 WHERE v1.c1 = v2.c1;
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(v1t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------
+ Nested Loop
+ -> Index Scan using t1_i1 on t1 v1t1
+ -> Bitmap Heap Scan on t1 v1t1_1
+ Recheck Cond: (c1 = v1t1.c1)
+ -> Bitmap Index Scan on t1_i1
+ Index Cond: (c1 = v1t1.c1)
+(6 rows)
+
+-- No. S-2-3-5
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1_ v2 WHERE v1.c1 = v2.c1;
+ QUERY PLAN
+-----------------------------------
+ Hash Join
+ Hash Cond: (v1t1.c1 = v1t1_.c1)
+ -> Seq Scan on t1 v1t1
+ -> Hash
+ -> Seq Scan on t1 v1t1_
+(5 rows)
+
+/*+SeqScan(v1t1)BitmapScan(v1t1_)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.v1 v1, s1.v1_ v2 WHERE v1.c1 = v2.c1;
+LOG: pg_hint_plan:
+used hint:
+SeqScan(v1t1)
+BitmapScan(v1t1_)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------
+ Nested Loop
+ -> Seq Scan on t1 v1t1
+ -> Bitmap Heap Scan on t1 v1t1_
+ Recheck Cond: (c1 = v1t1.c1)
+ -> Bitmap Index Scan on t1_i1
+ Index Cond: (c1 = v1t1.c1)
+(6 rows)
+
+-- No. S-2-3-6
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r4 t2 WHERE t1.c1 = t2.c1;
+ QUERY PLAN
+------------------------------------
+ Hash Join
+ Hash Cond: (r4t1.c1 = r4t1_1.c1)
+ -> Seq Scan on t1 r4t1
+ -> Hash
+ -> Seq Scan on t1 r4t1_1
+(5 rows)
+
+/*+BitmapScan(r4t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r4 t2 WHERE t1.c1 = t2.c1;
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(r4t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------
+ Nested Loop
+ -> Index Scan using t1_i1 on t1 r4t1
+ -> Bitmap Heap Scan on t1 r4t1_1
+ Recheck Cond: (c1 = r4t1.c1)
+ -> Bitmap Index Scan on t1_i1
+ Index Cond: (c1 = r4t1.c1)
+(6 rows)
+
+-- No. S-2-3-7
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r5 t2 WHERE t1.c1 = t2.c1;
+ QUERY PLAN
+----------------------------------
+ Hash Join
+ Hash Cond: (r4t1.c1 = r5t1.c1)
+ -> Seq Scan on t1 r4t1
+ -> Hash
+ -> Seq Scan on t1 r5t1
+(5 rows)
+
+/*+SeqScan(r4t1)BitmapScan(r5t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.r4 t1, s1.r5 t2 WHERE t1.c1 = t2.c1;
+LOG: pg_hint_plan:
+used hint:
+SeqScan(r4t1)
+BitmapScan(r5t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------
+ Nested Loop
+ -> Seq Scan on t1 r4t1
+ -> Bitmap Heap Scan on t1 r5t1
+ Recheck Cond: (c1 = r4t1.c1)
+ -> Bitmap Index Scan on t1_i1
+ Index Cond: (c1 = r4t1.c1)
+(6 rows)
+
+----
+---- No. S-2-4 VALUES clause
+----
+-- No. S-2-4-1
+EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1) WHERE t1.c1 = 1;
+ QUERY PLAN
+------------
+ Result
+(1 row)
+
+/*+SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1) WHERE t1.c1 = 1;
LOG: pg_hint_plan:
used hint:
duplication hint:
error hint:
- QUERY PLAN
----------------------------
- Values Scan on "*VALUES*"
- Filter: (column1 = 1)
-(2 rows)
+ QUERY PLAN
+------------
+ Result
+(1 row)
/*+SeqScan(*VALUES*)*/
EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1) WHERE t1.c1 = 1;
duplication hint:
error hint:
- QUERY PLAN
----------------------------
- Values Scan on "*VALUES*"
- Filter: (column1 = 1)
-(2 rows)
+ QUERY PLAN
+------------
+ Result
+(1 row)
--- No. J-2-4-2
-EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1, c2, c3, c4), (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t2 (c1, c2) WHERE t1.c1 = t2.c1;
+-- No. S-2-4-2
+EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1'), (3,3,3,'3')) AS t1 (c1, c2, c3, c4), (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t2 (c1, c2) WHERE t1.c1 = t2.c1;
QUERY PLAN
----------------------------------------------------------
- Nested Loop
- Join Filter: ("*VALUES*".column1 = "*VALUES*".column1)
- -> Values Scan on "*VALUES*"
+ Hash Join
+ Hash Cond: ("*VALUES*".column1 = "*VALUES*_1".column1)
-> Values Scan on "*VALUES*"
-(4 rows)
+ -> Hash
+ -> Values Scan on "*VALUES*_1"
+(5 rows)
/*+SeqScan(t1 t2)*/
-EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1, c2, c3, c4), (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t2 (c1, c2) WHERE t1.c1 = t2.c1;
-INFO: hint syntax error at or near "t2)"
-DETAIL: Closed parenthesis is necessary.
+EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1'), (3,3,3,'3')) AS t1 (c1, c2, c3, c4), (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t2 (c1, c2) WHERE t1.c1 = t2.c1;
+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
----------------------------------------------------------
- Nested Loop
- Join Filter: ("*VALUES*".column1 = "*VALUES*".column1)
- -> Values Scan on "*VALUES*"
+ Hash Join
+ Hash Cond: ("*VALUES*".column1 = "*VALUES*_1".column1)
-> Values Scan on "*VALUES*"
-(4 rows)
+ -> Hash
+ -> Values Scan on "*VALUES*_1"
+(5 rows)
/*+SeqScan(*VALUES*)*/
-EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1')) AS t1 (c1, c2, c3, c4), (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t2 (c1, c2) WHERE t1.c1 = t2.c1;
+EXPLAIN (COSTS false) SELECT * FROM (VALUES(1,1,1,'1'), (3,3,3,'3')) AS t1 (c1, c2, c3, c4), (VALUES(1,1,1,'1'), (2,2,2,'2')) AS t2 (c1, c2) WHERE t1.c1 = t2.c1;
LOG: pg_hint_plan:
used hint:
not used hint:
QUERY PLAN
----------------------------------------------------------
- Nested Loop
- Join Filter: ("*VALUES*".column1 = "*VALUES*".column1)
- -> Values Scan on "*VALUES*"
+ Hash Join
+ Hash Cond: ("*VALUES*".column1 = "*VALUES*_1".column1)
-> Values Scan on "*VALUES*"
-(4 rows)
+ -> Hash
+ -> Values Scan on "*VALUES*_1"
+(5 rows)
----
---- No. S-3-1 scan method hint
Index Cond: (c1 = 1)
(2 rows)
-/*+NoTidScan(t1)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
+/*+NoTidScan(t1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+NoTidScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------
+ Index Scan using t1_i1 on t1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+-- No. S-3-1-17
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 = 1;
+ QUERY PLAN
+-----------------------------------
+ Index Only Scan using t1_i1 on t1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+/*+IndexOnlyScan(t1)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------
+ Index Only Scan using t1_i1 on t1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+-- No. S-3-1-18
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on t1
+ Filter: (c1 >= 1)
+(2 rows)
+
+/*+IndexOnlyScan(t1)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 >= 1;
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------
+ Index Only Scan using t1_i1 on t1
+ Index Cond: (c1 >= 1)
+(2 rows)
+
+-- No. S-3-1-19
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 = 1;
+ QUERY PLAN
+-----------------------------------
+ Index Only Scan using t1_i1 on t1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+/*+NoIndexOnlyScan(t1)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+NoIndexOnlyScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------
+ Index Scan using t1_i1 on t1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+-- No. S-3-1-20
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on t1
+ Filter: (c1 >= 1)
+(2 rows)
+
+/*+NoIndexOnlyScan(t1)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.t1 WHERE t1.c1 >= 1;
LOG: pg_hint_plan:
used hint:
-NoTidScan(t1)
+NoIndexOnlyScan(t1)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-------------------------------
- Index Scan using t1_i1 on t1
- Index Cond: (c1 = 1)
+ QUERY PLAN
+---------------------
+ Seq Scan on t1
+ Filter: (c1 >= 1)
(2 rows)
----
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
QUERY PLAN
---------------------------------
- Index Scan using ti1_i2 on ti1
+ Index Scan using ti1_i4 on ti1
Index Cond: (c2 = 1)
Filter: (ctid = '(1,1)'::tid)
(3 rows)
Bitmap Heap Scan on ti1
Recheck Cond: (c2 = 1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on ti1_i2
+ -> Bitmap Index Scan on ti1_i4
Index Cond: (c2 = 1)
(5 rows)
RESET enable_tidscan;
RESET enable_indexscan;
+EXPLAIN (COSTS false) SELECT c2 FROM s1.ti1 WHERE ti1.c2 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on ti1
+ Filter: (c2 >= 1)
+(2 rows)
+
-- No. S-3-3-1
/*+IndexScan(ti1 ti1_i3)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_i3
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_i3)
-- No. S-3-3-2
/*+IndexScan(ti1 ti1_i3 ti1_i2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_i3 ti1_i2
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_i3 ti1_i2)
QUERY PLAN
---------------------------------
- Index Scan using ti1_i2 on ti1
+ Index Scan using ti1_i3 on ti1
Index Cond: (c2 = 1)
Filter: (ctid = '(1,1)'::tid)
(3 rows)
-- No. S-3-3-3
/*+IndexScan(ti1 ti1_i4 ti1_i3 ti1_i2 ti1_i1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_i4 ti1_i3 ti1_i2 ti1_i1
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_i4 ti1_i3 ti1_i2 ti1_i1)
QUERY PLAN
---------------------------------
- Index Scan using ti1_i2 on ti1
+ Index Scan using ti1_i4 on ti1
Index Cond: (c2 = 1)
Filter: (ctid = '(1,1)'::tid)
(3 rows)
-- No. S-3-3-4
/*+BitmapScan(ti1 ti1_i3)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_i3
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_i3)
-- No. S-3-3-5
/*+BitmapScan(ti1 ti1_i3 ti1_i2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_i3 ti1_i2
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_i3 ti1_i2)
Bitmap Heap Scan on ti1
Recheck Cond: (c2 = 1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on ti1_i2
+ -> Bitmap Index Scan on ti1_i3
Index Cond: (c2 = 1)
(5 rows)
-- No. S-3-3-6
/*+BitmapScan(ti1 ti1_i4 ti1_i3 ti1_i2 ti1_i1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE ti1.c2 = 1 AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_i4 ti1_i3 ti1_i2 ti1_i1
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_i4 ti1_i3 ti1_i2 ti1_i1)
Bitmap Heap Scan on ti1
Recheck Cond: (c2 = 1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on ti1_i2
+ -> Bitmap Index Scan on ti1_i4
Index Cond: (c2 = 1)
(5 rows)
+-- No. S-3-3-7
+/*+IndexOnlyScan(ti1 ti1_i3)*/
+EXPLAIN (COSTS false) SELECT c2 FROM s1.ti1 WHERE ti1.c2 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_i3
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_i3)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------
+ Index Only Scan using ti1_i3 on ti1
+ Index Cond: (c2 >= 1)
+(2 rows)
+
+-- No. S-3-3-8
+/*+IndexOnlyScan(ti1 ti1_i3 ti1_i2)*/
+EXPLAIN (COSTS false) SELECT c2 FROM s1.ti1 WHERE ti1.c2 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_i3 ti1_i2
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_i3 ti1_i2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------
+ Index Only Scan using ti1_i2 on ti1
+ Index Cond: (c2 >= 1)
+(2 rows)
+
+-- No. S-3-3-9
+/*+IndexOnlyScan(ti1 ti1_i4 ti1_i3 ti1_i2 ti1_i1)*/
+EXPLAIN (COSTS false) SELECT c2 FROM s1.ti1 WHERE ti1.c2 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_i4 ti1_i3 ti1_i2 ti1_i1
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_i4 ti1_i3 ti1_i2 ti1_i1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------
+ Index Only Scan using ti1_i1 on ti1
+ Index Cond: (c2 >= 1)
+(2 rows)
+
----
---- No. S-3-4 index type
----
\d s1.ti1
- Table "s1.ti1"
- Column | Type | Modifiers
---------+---------+-----------
- c1 | integer | not null
- c2 | integer |
- c3 | integer |
- c4 | text |
+ Table "s1.ti1"
+ Column | Type | Collation | Nullable | Default
+--------+---------+-----------+----------+---------
+ c1 | integer | | not null |
+ c2 | integer | | |
+ c3 | integer | | |
+ c4 | text | | |
Indexes:
"ti1_pkey" PRIMARY KEY, btree (c1)
- "ti1_c2_key" UNIQUE CONSTRAINT, btree (c2)
- "ti1_uniq" UNIQUE, btree (c1)
"ti1_btree" btree (c1)
+ "ti1_c2_key" UNIQUE CONSTRAINT, btree (c2)
"ti1_expr" btree ((c1 < 100))
"ti1_gin" gin (c1)
"ti1_gist" gist (c1)
"ti1_multi" btree (c1, c2, c3, c4)
"ti1_pred" btree (lower(c4))
"ti1_ts" gin (to_tsvector('english'::regconfig, c4))
+ "ti1_uniq" UNIQUE, btree (c1)
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------
Tid Scan on ti1
TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((c1 < 100) AND (c2 = 1) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c1 < 100) AND (c2 = 1) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-1
/*+IndexScan(ti1 ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_btree
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_btree)
----------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_btree on ti1
Index Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-2
/*+IndexScan(ti1 ti1_hash)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_hash
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_hash)
----------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_hash on ti1
Index Cond: (c1 = 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-3
/*+IndexScan(ti1 ti1_gist)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_gist
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_gist)
----------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_gist on ti1
Index Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-4
/*+IndexScan(ti1 ti1_gin)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_gin
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_gin)
-----------------------------------------------------------------------------------------------------------------------------------------
Tid Scan on ti1
TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((c1 < 100) AND (c2 = 1) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c1 < 100) AND (c2 = 1) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-5
/*+IndexScan(ti1 ti1_expr)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_expr
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_expr)
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_expr on ti1
Index Cond: ((c1 < 100) = true)
- Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-6
/*+IndexScan(ti1 ti1_pred)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_pred
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_pred)
-- No. S-3-4-7
/*+IndexScan(ti1 ti1_uniq)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_uniq
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_uniq)
----------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_uniq on ti1
Index Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-8
/*+IndexScan(ti1 ti1_multi)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_multi
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_multi)
---------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_multi on ti1
Index Cond: ((c1 < 100) AND (c2 = 1))
- Filter: ((ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-9
/*+IndexScan(ti1 ti1_ts)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_ts
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_ts)
-----------------------------------------------------------------------------------------------------------------------------------------
Tid Scan on ti1
TID Cond: (ctid = '(1,1)'::tid)
- Filter: ((c1 < 100) AND (c2 = 1) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c1 < 100) AND (c2 = 1) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-10
/*+IndexScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_pkey
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_pkey)
----------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_pkey on ti1
Index Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-11
/*+IndexScan(ti1 ti1_c2_key)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_c2_key
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_c2_key)
------------------------------------------------------------------------------------------------------------------------------------------------------
Index Scan using ti1_c2_key on ti1
Index Cond: (c2 = 1)
- Filter: ((c1 < 100) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c1 < 100) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
(3 rows)
-- No. S-3-4-12
/*+BitmapScan(ti1 ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_btree
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_btree)
----------------------------------------------------------------------------------------------------------------------------------------------------
Bitmap Heap Scan on ti1
Recheck Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
-> Bitmap Index Scan on ti1_btree
Index Cond: (c1 < 100)
(5 rows)
-- No. S-3-4-13
/*+BitmapScan(ti1 ti1_hash)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_hash
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_hash)
----------------------------------------------------------------------------------------------------------------------------------------------------
Bitmap Heap Scan on ti1
Recheck Cond: (c1 = 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
-> Bitmap Index Scan on ti1_hash
Index Cond: (c1 = 100)
(5 rows)
-- No. S-3-4-14
/*+BitmapScan(ti1 ti1_gist)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_gist
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_gist)
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on ti1
- Recheck Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
- -> Bitmap Index Scan on ti1_gist
- Index Cond: (c1 < 100)
-(5 rows)
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (c1 < 100)
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_gist
+ Index Cond: (c1 < 100)
+(5 rows)
+
+-- No. S-3-4-15
+/*+BitmapScan(ti1 ti1_gin)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_gin
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_gin)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (c1 < 100)
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_gin
+ Index Cond: (c1 < 100)
+(5 rows)
+
+-- No. S-3-4-16
+/*+BitmapScan(ti1 ti1_expr)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_expr
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_expr)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_expr
+ Index Cond: ((c1 < 100) = true)
+(4 rows)
+
+-- No. S-3-4-17
+/*+BitmapScan(ti1 ti1_pred)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_pred
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_pred)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+---------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (lower(c4) = '1'::text)
+ Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_pred
+ Index Cond: (lower(c4) = '1'::text)
+(5 rows)
+
+-- No. S-3-4-18
+/*+BitmapScan(ti1 ti1_uniq)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_uniq
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_uniq)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (c1 < 100)
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_uniq
+ Index Cond: (c1 < 100)
+(5 rows)
+
+-- No. S-3-4-19
+/*+BitmapScan(ti1 ti1_multi)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_multi
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_multi)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+---------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: ((c1 < 100) AND (c2 = 1))
+ Filter: ((ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_multi
+ Index Cond: ((c1 < 100) AND (c2 = 1))
+(5 rows)
+
+-- No. S-3-4-20
+/*+BitmapScan(ti1 ti1_ts)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_ts
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_ts)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery)
+ Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text))
+ -> Bitmap Index Scan on ti1_ts
+ Index Cond: (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery)
+(5 rows)
+
+-- No. S-3-4-21
+/*+BitmapScan(ti1 ti1_pkey)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_pkey
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (c1 < 100)
+ Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_pkey
+ Index Cond: (c1 < 100)
+(5 rows)
+
+-- No. S-3-4-22
+/*+BitmapScan(ti1 ti1_c2_key)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_c2_key
+LOG: pg_hint_plan:
+used hint:
+BitmapScan(ti1 ti1_c2_key)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------------------------------------------------------------------------------------------------------------------------
+ Bitmap Heap Scan on ti1
+ Recheck Cond: (c2 = 1)
+ Filter: ((c1 < 100) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
+ -> Bitmap Index Scan on ti1_c2_key
+ Index Cond: (c2 = 1)
+(5 rows)
+
+-- No. S-3-4-23
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on ti1
+ Filter: (c1 >= 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_btree)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_btree
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_btree)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------
+ Index Only Scan using ti1_btree on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
+
+-- No. S-3-4-24
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+ QUERY PLAN
+----------------------------------
+ Index Scan using ti1_hash on ti1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_hash)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_hash
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_hash)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------
+ Index Scan using ti1_hash on ti1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+-- No. S-3-4-25
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 < 1;
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_uniq on ti1
+ Index Cond: (c1 < 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_gist)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 < 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_gist
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_gist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_gist on ti1
+ Index Cond: (c1 < 1)
+(2 rows)
+
+-- No. S-3-4-26
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+ QUERY PLAN
+----------------------------------
+ Index Scan using ti1_hash on ti1
+ Index Cond: (c1 = 1)
+(2 rows)
--- No. S-3-4-15
-/*+BitmapScan(ti1 ti1_gin)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+/*+IndexOnlyScan(ti1 ti1_gin)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_gin
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_gin)
+IndexOnlyScan(ti1 ti1_gin)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------
+ QUERY PLAN
+------------------------------------
Bitmap Heap Scan on ti1
- Recheck Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
+ Recheck Cond: (c1 = 1)
-> Bitmap Index Scan on ti1_gin
- Index Cond: (c1 < 100)
-(5 rows)
+ Index Cond: (c1 = 1)
+(4 rows)
--- No. S-3-4-16
-/*+BitmapScan(ti1 ti1_expr)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+-- No. S-3-4-27
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 < 100;
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_uniq on ti1
+ Index Cond: (c1 < 100)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_expr)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 < 100;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_expr
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_expr)
+IndexOnlyScan(ti1 ti1_expr)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on ti1
- Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
- -> Bitmap Index Scan on ti1_expr
- Index Cond: ((c1 < 100) = true)
-(4 rows)
+ QUERY PLAN
+-----------------------------------
+ Index Scan using ti1_expr on ti1
+ Index Cond: ((c1 < 100) = true)
+(2 rows)
--- No. S-3-4-17
-/*+BitmapScan(ti1 ti1_pred)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+-- No. S-3-4-28
+EXPLAIN (COSTS false) SELECT c4 FROM s1.ti1 WHERE lower(c4) >= '1';
+ QUERY PLAN
+------------------------------------
+ Seq Scan on ti1
+ Filter: (lower(c4) >= '1'::text)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_pred)*/
+EXPLAIN (COSTS false) SELECT c4 FROM s1.ti1 WHERE lower(c4) >= '1';
+LOG: available indexes for IndexOnlyScan(ti1): ti1_pred
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_pred)
+IndexOnlyScan(ti1 ti1_pred)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on ti1
- Recheck Cond: (lower(c4) = '1'::text)
- Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery))
- -> Bitmap Index Scan on ti1_pred
- Index Cond: (lower(c4) = '1'::text)
-(5 rows)
+ QUERY PLAN
+----------------------------------------
+ Index Scan using ti1_pred on ti1
+ Index Cond: (lower(c4) >= '1'::text)
+(2 rows)
--- No. S-3-4-18
-/*+BitmapScan(ti1 ti1_uniq)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+-- No. S-3-4-29
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on ti1
+ Filter: (c1 >= 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_uniq)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_uniq
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_uniq)
+IndexOnlyScan(ti1 ti1_uniq)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on ti1
- Recheck Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
- -> Bitmap Index Scan on ti1_uniq
- Index Cond: (c1 < 100)
-(5 rows)
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_uniq on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
--- No. S-3-4-19
-/*+BitmapScan(ti1 ti1_multi)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+-- No. S-3-4-30
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on ti1
+ Filter: (c1 >= 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_multi)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_multi
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_multi)
+IndexOnlyScan(ti1 ti1_multi)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------------------------------------------------------------------------
+ QUERY PLAN
+----------------------------------------
+ Index Only Scan using ti1_multi on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
+
+-- No. S-3-4-31
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE to_tsvector('english', c4) @@ 'a & b';
+ QUERY PLAN
+-----------------------------------------------------------------------------------------
Bitmap Heap Scan on ti1
- Recheck Cond: ((c1 < 100) AND (c2 = 1))
- Filter: ((ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
- -> Bitmap Index Scan on ti1_multi
- Index Cond: ((c1 < 100) AND (c2 = 1))
-(5 rows)
+ Recheck Cond: (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery)
+ -> Bitmap Index Scan on ti1_ts
+ Index Cond: (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery)
+(4 rows)
--- No. S-3-4-20
-/*+BitmapScan(ti1 ti1_ts)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+/*+IndexOnlyScan(ti1 ti1_ts)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE to_tsvector('english', c4) @@ 'a & b';
+LOG: available indexes for IndexOnlyScan(ti1): ti1_ts
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_ts)
+IndexOnlyScan(ti1 ti1_ts)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
--------------------------------------------------------------------------------------------
+ QUERY PLAN
+-----------------------------------------------------------------------------------------
Bitmap Heap Scan on ti1
Recheck Cond: (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery)
- Filter: ((c1 < 100) AND (c2 = 1) AND (ctid = '(1,1)'::tid) AND (lower(c4) = '1'::text))
-> Bitmap Index Scan on ti1_ts
Index Cond: (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery)
-(5 rows)
+(4 rows)
--- No. S-3-4-10
-/*+BitmapScan(ti1 ti1_pkey)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+-- No. S-3-4-32
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on ti1
+ Filter: (c1 >= 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_pkey)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_pkey)
+IndexOnlyScan(ti1 ti1_pkey)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on ti1
- Recheck Cond: (c1 < 100)
- Filter: ((c2 = 1) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
- -> Bitmap Index Scan on ti1_pkey
- Index Cond: (c1 < 100)
-(5 rows)
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_pkey on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
--- No. S-3-4-11
-/*+BitmapScan(ti1 ti1_c2_key)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 < 100 AND c2 = 1 AND lower(c4) = '1' AND to_tsvector('english', c4) @@ 'a & b' AND ctid = '(1,1)';
+-- No. S-3-4-33
+EXPLAIN (COSTS false) SELECT c2 FROM s1.ti1 WHERE c2 >= 1;
+ QUERY PLAN
+---------------------
+ Seq Scan on ti1
+ Filter: (c2 >= 1)
+(2 rows)
+
+/*+IndexOnlyScan(ti1 ti1_c2_key)*/
+EXPLAIN (COSTS false) SELECT c2 FROM s1.ti1 WHERE c2 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_c2_key
LOG: pg_hint_plan:
used hint:
-BitmapScan(ti1 ti1_c2_key)
+IndexOnlyScan(ti1 ti1_c2_key)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------------------------------------------------------------------------------------------------
- Bitmap Heap Scan on ti1
- Recheck Cond: (c2 = 1)
- Filter: ((c1 < 100) AND (ctid = '(1,1)'::tid) AND (to_tsvector('english'::regconfig, c4) @@ '''a'' & ''b'''::tsquery) AND (lower(c4) = '1'::text))
- -> Bitmap Index Scan on ti1_c2_key
- Index Cond: (c2 = 1)
-(5 rows)
+ QUERY PLAN
+-----------------------------------------
+ Index Only Scan using ti1_c2_key on ti1
+ Index Cond: (c2 >= 1)
+(2 rows)
----
---- No. S-3-5 not used index
----
-- No. S-3-5-1
-/*+IndexScan(ti1 ti1_pred)*/
-EXPLAIN (COSTS true) SELECT * FROM s1.ti1 WHERE c1 = 100;
+\o results/ut-S.tmpout
+/*+IndexScan(ti1 ti1_pred)*/ EXPLAIN (COSTS true) SELECT * FROM s1.ti1 WHERE c1 = 100;
+LOG: available indexes for IndexScan(ti1): ti1_pred
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_pred)
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------------------
- Seq Scan on ti1 (cost=10000000000.00..10000000018.50 rows=1 width=15)
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on ti1 (cost={inf}..{inf} rows=1 width=xxx)
Filter: (c1 = 100)
-(2 rows)
-- No. S-3-5-2
-/*+BitmapScan(ti1 ti1_pred)*/
-EXPLAIN (COSTS true) SELECT * FROM s1.ti1 WHERE c1 = 100;
+\o results/ut-S.tmpout
+/*+BitmapScan(ti1 ti1_pred)*/ EXPLAIN (COSTS true) SELECT * FROM s1.ti1 WHERE c1 = 100;
+LOG: available indexes for BitmapScan(ti1): ti1_pred
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_pred)
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------------------------------
- Seq Scan on ti1 (cost=10000000000.00..10000000018.50 rows=1 width=15)
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on ti1 (cost={inf}..{inf} rows=1 width=xxx)
Filter: (c1 = 100)
-(2 rows)
-----
----- No. S-3-6 not exist index
-----
--- No. S-3-6-1
-/*+IndexScan(ti1 not_exist)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 100;
+-- No. S-3-5-3
+\o results/ut-S.tmpout
+/*+IndexOnlyScan(ti1 ti1_pred)*/ EXPLAIN (COSTS true) SELECT c1 FROM s1.ti1 WHERE c1 = 100;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_pred
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_pred)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on ti1 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c1 = 100)
+
+-- No. S-3-5-4
+\o results/ut-S.tmpout
+/*+IndexScan(ti1 not_exist)*/ EXPLAIN (COSTS true) SELECT * FROM s1.ti1 WHERE c1 = 100;
+LOG: available indexes for IndexScan(ti1):
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 not_exist)
duplication hint:
error hint:
- QUERY PLAN
-----------------------
- Seq Scan on ti1
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on ti1 (cost={inf}..{inf} rows=1 width=xxx)
Filter: (c1 = 100)
-(2 rows)
--- No. S-3-6-2
-/*+BitmapScan(ti1 not_exist)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 100;
+-- No. S-3-5-5
+\o results/ut-S.tmpout
+/*+BitmapScan(ti1 not_exist)*/ EXPLAIN (COSTS true) SELECT * FROM s1.ti1 WHERE c1 = 100;
+LOG: available indexes for BitmapScan(ti1):
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 not_exist)
duplication hint:
error hint:
- QUERY PLAN
-----------------------
- Seq Scan on ti1
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on ti1 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c1 = 100)
+
+-- No. S-3-5-6
+\o results/ut-S.tmpout
+/*+IndexOnlyScan(ti1 not_exist)*/ EXPLAIN (COSTS true) SELECT c1 FROM s1.ti1 WHERE c1 = 100;
+LOG: available indexes for IndexOnlyScan(ti1):
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 not_exist)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on ti1 (cost={inf}..{inf} rows=1 width=xxx)
Filter: (c1 = 100)
+
+-- No. S-3-5-7
+EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
+ QUERY PLAN
+------------------------------
+ Index Scan using t1_i1 on t1
+ Index Cond: (c1 = 1)
(2 rows)
+\o results/ut-S.tmpout
+/*+TidScan(t1)*/ EXPLAIN (COSTS true) SELECT * FROM s1.t1 WHERE t1.c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+TidScan(t1)
+not used hint:
+duplication hint:
+error hint:
+
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Seq Scan on t1 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c1 = 1)
+
----
----- No. S-3-7 query structure
+---- No. S-3-6 query structure
----
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1 AND t1.ctid = '(1,1)';
QUERY PLAN
TID Cond: (ctid = '(1,1)'::tid)
(6 rows)
--- No. S-3-7-1
+-- No. S-3-6-1
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1 WHERE c1 = 100;
LOG: pg_hint_plan:
Filter: (c1 = 100)
(2 rows)
--- No. S-3-7-2
+-- No. S-3-6-2
/*+SeqScan(t1)BitmapScan(t2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1 AND t1.ctid = '(1,1)';
LOG: pg_hint_plan:
Index Cond: (c1 = t1.c1)
(7 rows)
--- No. S-3-7-3
+-- No. S-3-6-3
/*+SeqScan(t1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1 AND t1.ctid = '(1,1)';
LOG: pg_hint_plan:
(6 rows)
----
----- No. S-3-8 query structure
+---- No. S-3-7 number of tables in a query block
----
--- No. S-3-8-1
+-- No. S-3-7-1
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1 WHERE b1t1.c1 = 1)
SELECT max(b4t1.c1) FROM s1.t1 b4t1 WHERE b4t1.c1 = 1);
QUERY PLAN
---------------------------------------------------------------------
- Result
+ Aggregate
InitPlan 2 (returns $1)
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Index Scan using t1_i1 on t1 b2t1
+ -> Index Only Scan using t1_i1 on t1 b2t1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
InitPlan 4 (returns $3)
-> Result
InitPlan 3 (returns $2)
-> Limit
- -> Index Scan using t1_i1 on t1 b4t1
+ -> Index Only Scan using t1_i1 on t1 b4t1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 5 (returns $4)
- -> Limit
- -> Index Scan using t1_i1 on t1 b3t1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = $3))
-(17 rows)
+ -> Index Only Scan using t1_i1 on t1 b3t1
+ Index Cond: (c1 = $3)
+(15 rows)
-/*+BitmapScan(b1t1)BitmapScan(b2t1)BitmapScan(b3t1)BitmapScan(b4t1)*/
+/*+SeqScan(b1t1)IndexScan(b2t1 t1_pkey)BitmapScan(b3t1 t1_pkey)TidScan(b4t1)
+*/
EXPLAIN (COSTS false)
WITH c1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1 WHERE b1t1.c1 = 1)
SELECT max(b2t1.c1) FROM s1.t1 b2t1 WHERE b2t1.c1 = 1
) FROM s1.t1 b3t1 WHERE b3t1.c1 = (
SELECT max(b4t1.c1) FROM s1.t1 b4t1 WHERE b4t1.c1 = 1);
+LOG: available indexes for IndexScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t1): t1_pkey
+LOG: available indexes for BitmapScan(b3t1): t1_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b2t1)
-BitmapScan(b3t1)
-BitmapScan(b4t1)
+IndexScan(b2t1 t1_pkey)
+BitmapScan(b3t1 t1_pkey)
+TidScan(b4t1)
not used hint:
-BitmapScan(b1t1)
+SeqScan(b1t1)
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------------
- Result
+ QUERY PLAN
+---------------------------------------------------------------------
+ Aggregate
InitPlan 2 (returns $1)
-> Result
InitPlan 1 (returns $0)
-> Limit
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- -> Bitmap Index Scan on t1_i1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
+ -> Index Scan using t1_pkey on t1 b2t1
+ Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
InitPlan 4 (returns $3)
-> Result
InitPlan 3 (returns $2)
-> Limit
- -> Bitmap Heap Scan on t1 b4t1
- Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- -> Bitmap Index Scan on t1_i1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 5 (returns $4)
- -> Limit
- -> Bitmap Heap Scan on t1 b3t1
- Recheck Cond: ((c1 IS NOT NULL) AND (c1 = $3))
- -> Bitmap Index Scan on t1_i1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = $3))
-(23 rows)
+ -> Seq Scan on t1 b4t1
+ Filter: ((c1 IS NOT NULL) AND (c1 = 1))
+ -> Bitmap Heap Scan on t1 b3t1
+ Recheck Cond: (c1 = $3)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = $3)
+(17 rows)
--- No. S-3-8-2
+-- No. S-3-7-2
EXPLAIN (COSTS false)
WITH cte1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1 JOIN s1.t2 b1t2 ON(b1t1.c1 = b1t2.c1) WHERE b1t1.c1 = 1)
SELECT max(b2t1.c1) FROM s1.t1 b2t1 JOIN s1.t2 b2t2 ON(b2t1.c1 = b2t2.c1) WHERE b2t1.c1 = 1
) FROM s1.t1 b3t1 JOIN s1.t2 b3t2 ON(b3t1.c1 = b3t2.c1) JOIN cte1 ON(b3t1.c1 = cte1.c1) WHERE b3t1.c1 = (
SELECT max(b4t1.c1) FROM s1.t1 b4t1 JOIN s1.t2 b4t2 ON(b4t1.c1 = b4t2.c1) WHERE b4t1.c1 = 1);
- QUERY PLAN
--------------------------------------------------------
+ QUERY PLAN
+----------------------------------------------------------------
Aggregate
- CTE cte1
- -> Aggregate
- -> Nested Loop
- -> Index Scan using t1_i1 on t1 b1t1
- Index Cond: (c1 = 1)
- -> Seq Scan on t2 b1t2
- Filter: (c1 = 1)
- InitPlan 2 (returns $1)
+ InitPlan 1 (returns $0)
-> Aggregate
-> Nested Loop
- -> Index Scan using t1_i1 on t1 b2t1
+ -> Index Only Scan using t1_i1 on t1 b2t1
Index Cond: (c1 = 1)
-> Seq Scan on t2 b2t2
Filter: (c1 = 1)
- InitPlan 3 (returns $2)
+ InitPlan 2 (returns $1)
-> Aggregate
-> Nested Loop
- -> Index Scan using t1_i1 on t1 b4t1
+ -> Index Only Scan using t1_i1 on t1 b4t1
Index Cond: (c1 = 1)
-> Seq Scan on t2 b4t2
Filter: (c1 = 1)
-> Nested Loop
-> Nested Loop
- -> Index Scan using t1_i1 on t1 b3t1
- Index Cond: (c1 = $2)
+ -> Index Only Scan using t1_i1 on t1 b3t1
+ Index Cond: (c1 = $1)
-> Seq Scan on t2 b3t2
- Filter: (c1 = $2)
- -> CTE Scan on cte1
- Filter: (c1 = $2)
-(30 rows)
+ Filter: (c1 = $1)
+ -> Aggregate
+ Filter: (max(b1t1.c1) = $1)
+ -> Nested Loop
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ Index Cond: (c1 = 1)
+ -> Seq Scan on t2 b1t2
+ Filter: (c1 = 1)
+(28 rows)
-/*+BitmapScan(b1t1)BitmapScan(b2t1)BitmapScan(b3t1)BitmapScan(b4t1)BitmapScan(b1t2)BitmapScan(b2t2)BitmapScan(b3t2)BitmapScan(b4t2)*/
+/*+SeqScan(b1t1)IndexScan(b2t1 t1_pkey)BitmapScan(b3t1 t1_pkey)TidScan(b4t1)
+TidScan(b1t2)SeqScan(b2t2)IndexScan(b3t2 t2_pkey)BitmapScan(b4t2 t2_pkey)
+*/
EXPLAIN (COSTS false)
WITH cte1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1 JOIN s1.t2 b1t2 ON(b1t1.c1 = b1t2.c1) WHERE b1t1.c1 = 1)
SELECT max(b2t1.c1) FROM s1.t1 b2t1 JOIN s1.t2 b2t2 ON(b2t1.c1 = b2t2.c1) WHERE b2t1.c1 = 1
) FROM s1.t1 b3t1 JOIN s1.t2 b3t2 ON(b3t1.c1 = b3t2.c1) JOIN cte1 ON(b3t1.c1 = cte1.c1) WHERE b3t1.c1 = (
SELECT max(b4t1.c1) FROM s1.t1 b4t1 JOIN s1.t2 b4t2 ON(b4t1.c1 = b4t2.c1) WHERE b4t1.c1 = 1);
+LOG: available indexes for IndexScan(b2t1): t1_pkey
+LOG: available indexes for BitmapScan(b4t2): t2_pkey
+LOG: available indexes for BitmapScan(b3t1): t1_pkey
+LOG: available indexes for IndexScan(b3t2): t2_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b2t1)
-BitmapScan(b2t2)
-BitmapScan(b3t1)
-BitmapScan(b3t2)
-BitmapScan(b4t1)
-BitmapScan(b4t2)
+SeqScan(b1t1)
+TidScan(b1t2)
+IndexScan(b2t1 t1_pkey)
+SeqScan(b2t2)
+BitmapScan(b3t1 t1_pkey)
+IndexScan(b3t2 t2_pkey)
+TidScan(b4t1)
+BitmapScan(b4t2 t2_pkey)
not used hint:
duplication hint:
-error hint:
-
- QUERY PLAN
-------------------------------------------------------
- Aggregate
- CTE cte1
- -> Aggregate
- -> Nested Loop
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = 1)
- -> Bitmap Heap Scan on t2 b1t2
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = 1)
- InitPlan 2 (returns $1)
+error hint:
+
+ QUERY PLAN
+---------------------------------------------------------
+ Aggregate
+ InitPlan 1 (returns $0)
-> Aggregate
-> Nested Loop
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = 1)
- -> Bitmap Heap Scan on t2 b2t2
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = 1)
- InitPlan 3 (returns $2)
+ -> Index Scan using t1_pkey on t1 b2t1
+ Index Cond: (c1 = 1)
+ -> Seq Scan on t2 b2t2
+ Filter: (c1 = 1)
+ InitPlan 2 (returns $1)
-> Aggregate
-> Nested Loop
- -> Bitmap Heap Scan on t1 b4t1
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = 1)
+ -> Seq Scan on t1 b4t1
+ Filter: (c1 = 1)
-> Bitmap Heap Scan on t2 b4t2
Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t2_i1
+ -> Bitmap Index Scan on t2_pkey
Index Cond: (c1 = 1)
-> Nested Loop
-> Nested Loop
-> Bitmap Heap Scan on t1 b3t1
- Recheck Cond: (c1 = $2)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = $2)
- -> Bitmap Heap Scan on t2 b3t2
- Recheck Cond: (c1 = $2)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = $2)
- -> CTE Scan on cte1
- Filter: (c1 = $2)
-(46 rows)
+ Recheck Cond: (c1 = $1)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = $1)
+ -> Index Scan using t2_pkey on t2 b3t2
+ Index Cond: (c1 = $1)
+ -> Aggregate
+ Filter: (max(b1t1.c1) = $1)
+ -> Nested Loop
+ -> Seq Scan on t1 b1t1
+ Filter: (c1 = 1)
+ -> Seq Scan on t2 b1t2
+ Filter: (c1 = 1)
+(32 rows)
--- No. S-3-8-3
+-- No. S-3-7-3
EXPLAIN (COSTS false)
WITH cte1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1 JOIN s1.t2 b1t2 ON(b1t1.c1 = b1t2.c1) WHERE b1t1.c1 = 1)
QUERY PLAN
---------------------------------------------------------------------
Aggregate
- CTE cte1
- -> Aggregate
- -> Nested Loop
- -> Index Scan using t1_i1 on t1 b1t1
- Index Cond: (c1 = 1)
- -> Seq Scan on t2 b1t2
- Filter: (c1 = 1)
- InitPlan 3 (returns $2)
+ InitPlan 2 (returns $1)
-> Result
- InitPlan 2 (returns $1)
+ InitPlan 1 (returns $0)
-> Limit
- -> Index Scan using t1_i1 on t1 b2t1
+ -> Index Only Scan using t1_i1 on t1 b2t1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 5 (returns $4)
+ InitPlan 4 (returns $3)
-> Result
- InitPlan 4 (returns $3)
+ InitPlan 3 (returns $2)
-> Limit
- -> Index Scan using t1_i1 on t1 b4t1
+ -> Index Only Scan using t1_i1 on t1 b4t1
Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
-> Nested Loop
-> Nested Loop
- -> Index Scan using t1_i1 on t1 b3t1
- Index Cond: (c1 = $4)
+ -> Index Only Scan using t1_i1 on t1 b3t1
+ Index Cond: (c1 = $3)
-> Seq Scan on t2 b3t2
- Filter: (c1 = $4)
- -> CTE Scan on cte1
- Filter: (c1 = $4)
-(28 rows)
-
-/*+BitmapScan(b1t1)BitmapScan(b2t1)BitmapScan(b3t1)BitmapScan(b4t1)BitmapScan(b1t2)BitmapScan(b3t2)*/
+ Filter: (c1 = $3)
+ -> Aggregate
+ Filter: (max(b1t1.c1) = $3)
+ -> Nested Loop
+ -> Index Only Scan using t1_i1 on t1 b1t1
+ Index Cond: (c1 = 1)
+ -> Seq Scan on t2 b1t2
+ Filter: (c1 = 1)
+(26 rows)
+
+/*+SeqScan(b1t1)IndexScan(b2t1 t1_pkey)BitmapScan(b3t1 t1_pkey)TidScan(b4t1)
+TidScan(b1t2)IndexScan(b3t2 t2_pkey)
+*/
EXPLAIN (COSTS false)
WITH cte1 (c1) AS (
SELECT max(b1t1.c1) FROM s1.t1 b1t1 JOIN s1.t2 b1t2 ON(b1t1.c1 = b1t2.c1) WHERE b1t1.c1 = 1)
SELECT max(b2t1.c1) FROM s1.t1 b2t1 WHERE b2t1.c1 = 1
) FROM s1.t1 b3t1 JOIN s1.t2 b3t2 ON(b3t1.c1 = b3t2.c1) JOIN cte1 ON(b3t1.c1 = cte1.c1) WHERE b3t1.c1 = (
SELECT max(b4t1.c1) FROM s1.t1 b4t1 WHERE b4t1.c1 = 1);
+LOG: available indexes for IndexScan(b2t1): t1_pkey
+LOG: available indexes for IndexScan(b2t1): t1_pkey
+LOG: available indexes for BitmapScan(b3t1): t1_pkey
+LOG: available indexes for IndexScan(b3t2): t2_pkey
LOG: pg_hint_plan:
used hint:
-BitmapScan(b1t1)
-BitmapScan(b1t2)
-BitmapScan(b2t1)
-BitmapScan(b3t1)
-BitmapScan(b3t2)
-BitmapScan(b4t1)
+SeqScan(b1t1)
+TidScan(b1t2)
+IndexScan(b2t1 t1_pkey)
+BitmapScan(b3t1 t1_pkey)
+IndexScan(b3t2 t2_pkey)
+TidScan(b4t1)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------------
+ QUERY PLAN
+---------------------------------------------------------------------
Aggregate
- CTE cte1
- -> Aggregate
- -> Nested Loop
- -> Bitmap Heap Scan on t1 b1t1
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = 1)
- -> Bitmap Heap Scan on t2 b1t2
- Recheck Cond: (c1 = 1)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = 1)
- InitPlan 3 (returns $2)
+ InitPlan 2 (returns $1)
-> Result
- InitPlan 2 (returns $1)
+ InitPlan 1 (returns $0)
-> Limit
- -> Bitmap Heap Scan on t1 b2t1
- Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- -> Bitmap Index Scan on t1_i1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- InitPlan 5 (returns $4)
+ -> Index Scan using t1_pkey on t1 b2t1
+ Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
+ InitPlan 4 (returns $3)
-> Result
- InitPlan 4 (returns $3)
+ InitPlan 3 (returns $2)
-> Limit
- -> Bitmap Heap Scan on t1 b4t1
- Recheck Cond: ((c1 IS NOT NULL) AND (c1 = 1))
- -> Bitmap Index Scan on t1_i1
- Index Cond: ((c1 IS NOT NULL) AND (c1 = 1))
+ -> Seq Scan on t1 b4t1
+ Filter: ((c1 IS NOT NULL) AND (c1 = 1))
-> Nested Loop
-> Nested Loop
-> Bitmap Heap Scan on t1 b3t1
- Recheck Cond: (c1 = $4)
- -> Bitmap Index Scan on t1_i1
- Index Cond: (c1 = $4)
- -> Bitmap Heap Scan on t2 b3t2
- Recheck Cond: (c1 = $4)
- -> Bitmap Index Scan on t2_i1
- Index Cond: (c1 = $4)
- -> CTE Scan on cte1
- Filter: (c1 = $4)
-(40 rows)
+ Recheck Cond: (c1 = $3)
+ -> Bitmap Index Scan on t1_pkey
+ Index Cond: (c1 = $3)
+ -> Index Scan using t2_pkey on t2 b3t2
+ Index Cond: (c1 = $3)
+ -> Aggregate
+ Filter: (max(b1t1.c1) = $3)
+ -> Nested Loop
+ -> Seq Scan on t1 b1t1
+ Filter: (c1 = 1)
+ -> Seq Scan on t2 b1t2
+ Filter: (c1 = 1)
+(28 rows)
----
----- No. S-3-9 inheritance table select type
+---- No. S-3-8 inheritance table select/update type
----
--- No. S-3-9-1
+-- No. S-3-8-1
EXPLAIN (COSTS false) SELECT * FROM ONLY s1.p1 WHERE c1 = 1;
QUERY PLAN
--------------------
duplication hint:
error hint:
- QUERY PLAN
---------------------------------
- Index Scan using p1_pkey on p1
+ QUERY PLAN
+-----------------------------
+ Index Scan using p1_i on p1
Index Cond: (c1 = 1)
(2 rows)
--- No. S-3-9-2
+-- No. S-3-8-2
EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
- QUERY PLAN
----------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: (c1 = 1)
- -> Seq Scan on p1c1 p1
- Filter: (c1 = 1)
-(6 rows)
+ QUERY PLAN
+-----------------------------
+ Append
+ -> Seq Scan on p1 p1_1
+ Filter: (c1 = 1)
+ -> Seq Scan on p1c1 p1_2
+ Filter: (c1 = 1)
+(5 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------
- Result
- -> Append
- -> Index Scan using p1_pkey on p1
- Index Cond: (c1 = 1)
- -> Index Scan using p1c1_i on p1c1 p1
- Index Cond: (c1 = 1)
-(6 rows)
+ QUERY PLAN
+--------------------------------------------
+ Append
+ -> Index Scan using p1_i on p1 p1_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_i on p1c1 p1_2
+ Index Cond: (c1 = 1)
+(5 rows)
+
+-- No. S-3-8-3
+EXPLAIN (COSTS false) UPDATE ONLY s1.p1 SET c4 = c4 WHERE c1 = 1;
+ QUERY PLAN
+--------------------------
+ Update on p1
+ -> Seq Scan on p1
+ Filter: (c1 = 1)
+(3 rows)
+
+/*+IndexScan(p1)*/
+EXPLAIN (COSTS false) UPDATE ONLY s1.p1 SET c4 = c4 WHERE c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------
+ Update on p1
+ -> Index Scan using p1_i on p1
+ Index Cond: (c1 = 1)
+(3 rows)
+
+/*+IndexScan(p1 p1_pkey)*/
+EXPLAIN (COSTS false) UPDATE ONLY s1.p1 SET c4 = c4 WHERE c1 = 1;
+LOG: available indexes for IndexScan(p1): p1_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1 p1_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------
+ Update on p1
+ -> Index Scan using p1_pkey on p1
+ Index Cond: (c1 = 1)
+(3 rows)
+
+-- No. S-3-8-4
+EXPLAIN (COSTS false) UPDATE s1.p1 SET c4 = c4 WHERE c1 = 1;
+ QUERY PLAN
+-----------------------------
+ Update on p1
+ Update on p1
+ Update on p1c1 p1_1
+ -> Seq Scan on p1
+ Filter: (c1 = 1)
+ -> Seq Scan on p1c1 p1_1
+ Filter: (c1 = 1)
+(7 rows)
+
+/*+IndexScan(p1)*/
+EXPLAIN (COSTS false) UPDATE s1.p1 SET c4 = c4 WHERE c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Update on p1
+ Update on p1
+ Update on p1c1 p1_1
+ -> Index Scan using p1_i on p1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_i on p1c1 p1_1
+ Index Cond: (c1 = 1)
+(7 rows)
+
+/*+IndexScan(p1 p1_pkey)*/
+EXPLAIN (COSTS false) UPDATE s1.p1 SET c4 = c4 WHERE c1 = 1;
+LOG: available indexes for IndexScan(p1): p1_pkey
+LOG: available indexes for IndexScan(p1c1): p1c1_pkey
+LOG: available indexes for IndexScan(p1): p1_pkey
+LOG: available indexes for IndexScan(p1c1): p1c1_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1 p1_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------
+ Update on p1
+ Update on p1
+ Update on p1c1 p1_1
+ -> Index Scan using p1_pkey on p1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_pkey on p1c1 p1_1
+ Index Cond: (c1 = 1)
+(7 rows)
----
----- No. S-3-10 inheritance table number
+---- No. S-3-9 inheritance table number
----
--- No. S-3-10-1
+-- No. S-3-9-1
EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
- QUERY PLAN
----------------------------------
- Result
- -> Append
- -> Seq Scan on p1
- Filter: (c1 = 1)
- -> Seq Scan on p1c1 p1
- Filter: (c1 = 1)
-(6 rows)
+ QUERY PLAN
+-----------------------------
+ Append
+ -> Seq Scan on p1 p1_1
+ Filter: (c1 = 1)
+ -> Seq Scan on p1c1 p1_2
+ Filter: (c1 = 1)
+(5 rows)
/*+IndexScan(p1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
duplication hint:
error hint:
- QUERY PLAN
-------------------------------------------------
- Result
- -> Append
- -> Index Scan using p1_pkey on p1
- Index Cond: (c1 = 1)
- -> Index Scan using p1c1_i on p1c1 p1
- Index Cond: (c1 = 1)
-(6 rows)
+ QUERY PLAN
+--------------------------------------------
+ Append
+ -> Index Scan using p1_i on p1 p1_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_i on p1c1 p1_2
+ Index Cond: (c1 = 1)
+(5 rows)
--- No. S-3-10-2
+-- No. S-3-9-2
EXPLAIN (COSTS false) SELECT * FROM s1.p2 WHERE c1 = 1;
- QUERY PLAN
------------------------------------
- Result
- -> Append
- -> Seq Scan on p2
- Filter: (c1 = 1)
- -> Seq Scan on p2c1 p2
- Filter: (c1 = 1)
- -> Seq Scan on p2c1c1 p2
- Filter: (c1 = 1)
-(8 rows)
+ QUERY PLAN
+-------------------------------
+ Append
+ -> Seq Scan on p2 p2_1
+ Filter: (c1 = 1)
+ -> Seq Scan on p2c1 p2_2
+ Filter: (c1 = 1)
+ -> Seq Scan on p2c1c1 p2_3
+ Filter: (c1 = 1)
+(7 rows)
/*+IndexScan(p2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.p2 WHERE c1 = 1;
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------
- Result
- -> Append
- -> Index Scan using p2_pkey on p2
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1_i on p2c1 p2
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1c1_i on p2c1c1 p2
- Index Cond: (c1 = 1)
-(8 rows)
+ QUERY PLAN
+------------------------------------------------
+ Append
+ -> Index Scan using p2_i on p2 p2_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p2c1_i on p2c1 p2_2
+ Index Cond: (c1 = 1)
+ -> Index Scan using p2c1c1_i on p2c1c1 p2_3
+ Index Cond: (c1 = 1)
+(7 rows)
----
----- No. S-3-11 inheritance table specified table
+---- No. S-3-10 inheritance table specified table
----
EXPLAIN (COSTS false) SELECT * FROM s1.p2 WHERE c1 = 1;
- QUERY PLAN
------------------------------------
- Result
- -> Append
- -> Seq Scan on p2
- Filter: (c1 = 1)
- -> Seq Scan on p2c1 p2
- Filter: (c1 = 1)
- -> Seq Scan on p2c1c1 p2
- Filter: (c1 = 1)
-(8 rows)
+ QUERY PLAN
+-------------------------------
+ Append
+ -> Seq Scan on p2 p2_1
+ Filter: (c1 = 1)
+ -> Seq Scan on p2c1 p2_2
+ Filter: (c1 = 1)
+ -> Seq Scan on p2c1c1 p2_3
+ Filter: (c1 = 1)
+(7 rows)
--- No. S-3-11-1
+-- No. S-3-10-1
/*+IndexScan(p2)*/
EXPLAIN (COSTS false) SELECT * FROM s1.p2 WHERE c1 = 1;
LOG: pg_hint_plan:
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------
- Result
- -> Append
- -> Index Scan using p2_pkey on p2
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1_i on p2c1 p2
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1c1_i on p2c1c1 p2
- Index Cond: (c1 = 1)
-(8 rows)
+ QUERY PLAN
+------------------------------------------------
+ Append
+ -> Index Scan using p2_i on p2 p2_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p2c1_i on p2c1 p2_2
+ Index Cond: (c1 = 1)
+ -> Index Scan using p2c1c1_i on p2c1c1 p2_3
+ Index Cond: (c1 = 1)
+(7 rows)
--- No. S-3-11-2
+-- No. S-3-10-2
/*+IndexScan(p2c1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.p2 WHERE c1 = 1;
LOG: pg_hint_plan:
used hint:
-not used hint:
IndexScan(p2c1)
+not used hint:
duplication hint:
error hint:
- QUERY PLAN
------------------------------------
- Result
- -> Append
- -> Seq Scan on p2
- Filter: (c1 = 1)
- -> Seq Scan on p2c1 p2
- Filter: (c1 = 1)
- -> Seq Scan on p2c1c1 p2
- Filter: (c1 = 1)
-(8 rows)
+ QUERY PLAN
+--------------------------------------------
+ Append
+ -> Seq Scan on p2 p2_1
+ Filter: (c1 = 1)
+ -> Index Scan using p2c1_i on p2c1 p2_2
+ Index Cond: (c1 = 1)
+ -> Seq Scan on p2c1c1 p2_3
+ Filter: (c1 = 1)
+(7 rows)
--- No. S-3-11-3
-/*+IndexScan(p2 p2_pkey p2c1_pkey p2c1c1_pkey)*/
-EXPLAIN (COSTS false) SELECT * FROM s1.p2 WHERE c1 = 1;
+-- No. S-3-10-3
+\o results/ut-S.tmpout
+EXPLAIN SELECT c4 FROM s1.p1 WHERE c2 * 2 < 100 AND c1 < 10;
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Append (cost=xxx..xxx rows=4 width=xxx)
+ -> Seq Scan on p1 p1_1 (cost=xxx..xxx rows=1 width=xxx)
+ Filter: ((c1 < 10) AND ((c2 * 2) < 100))
+ -> Seq Scan on p1c1 p1_2 (cost=xxx..xxx rows=3 width=xxx)
+ Filter: ((c1 < 10) AND ((c2 * 2) < 100))
+
+\o results/ut-S.tmpout
+/*+IndexScan(p1 p1_parent)*/ EXPLAIN SELECT c4 FROM s1.p1 WHERE c2 * 2 < 100 AND c1 < 10;
+LOG: available indexes for IndexScan(p1): p1_parent
+LOG: available indexes for IndexScan(p1c1): p1c1_c4_expr_idx
LOG: pg_hint_plan:
used hint:
-IndexScan(p2 p2_pkey p2c1_pkey p2c1c1_pkey)
+IndexScan(p1 p1_parent)
not used hint:
duplication hint:
error hint:
- QUERY PLAN
-----------------------------------------------------
- Result
- -> Append
- -> Index Scan using p2_pkey on p2
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1_i on p2c1 p2
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1c1_i on p2c1c1 p2
- Index Cond: (c1 = 1)
-(8 rows)
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Append (cost=xxx..xxx rows=4 width=xxx)
+ -> Index Scan using p1_parent on p1 p1_1 (cost=xxx..xxx rows=1 width=xxx)
+ Filter: ((c2 * 2) < 100)
+ -> Index Scan using p1c1_c4_expr_idx on p1c1 p1_2 (cost=xxx..xxx rows=3 width=xxx)
+ Filter: ((c2 * 2) < 100)
+
+-- No. S-3-10-4
+\o results/ut-S.tmpout
+/*+IndexScan(p1 p1_i2)*/ EXPLAIN SELECT c2 FROM s1.p1 WHERE c2 = 1;
+LOG: available indexes for IndexScan(p1): p1_i2
+LOG: available indexes for IndexScan(p1c1):
+LOG: available indexes for IndexScan(p1c2):
+LOG: available indexes for IndexScan(p1c3):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(p1 p1_i2)
+not used hint:
+duplication hint:
+error hint:
--- No. S-3-11-4
-/*+IndexScan(p2 p2c1_pkey)*/
-EXPLAIN (COSTS true) SELECT * FROM s1.p2 WHERE c1 = 1;
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Append (cost=xxx..xxx rows=4 width=xxx)
+ -> Index Scan using p1_i2 on p1 p1_1 (cost=xxx..xxx rows=1 width=xxx)
+ Index Cond: (c2 = 1)
+ -> Seq Scan on p1c1 p1_2 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c2 = 1)
+ -> Seq Scan on p1c2 p1_3 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c2 = 1)
+ -> Seq Scan on p1c3 p1_4 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c2 = 1)
+
+-- No. S-3-10-5
+\o results/ut-S.tmpout
+/*+IndexScan(p2 p2c1_pkey)*/ EXPLAIN (COSTS true) SELECT * FROM s1.p2 WHERE c1 = 1;
+LOG: available indexes for IndexScan(p2):
+LOG: available indexes for IndexScan(p2c1): p2c1_pkey
+LOG: available indexes for IndexScan(p2c1c1):
LOG: pg_hint_plan:
used hint:
IndexScan(p2 p2c1_pkey)
duplication hint:
error hint:
- QUERY PLAN
----------------------------------------------------------------------------------------
- Result (cost=0.00..24.80 rows=3 width=34)
- -> Append (cost=0.00..24.80 rows=3 width=34)
- -> Index Scan using p2_pkey on p2 (cost=0.00..8.27 rows=1 width=44)
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1_i on p2c1 p2 (cost=0.00..8.27 rows=1 width=44)
- Index Cond: (c1 = 1)
- -> Index Scan using p2c1c1_i on p2c1c1 p2 (cost=0.00..8.27 rows=1 width=14)
- Index Cond: (c1 = 1)
-(8 rows)
+\o
+\! sql/maskout.sh results/ut-S.tmpout
+ QUERY PLAN
+----------------
+ Append (cost={inf}..{inf} rows=3 width=xxx)
+ -> Seq Scan on p2 p2_1 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c1 = 1)
+ -> Index Scan using p2c1_pkey on p2c1 p2_2 (cost=xxx..xxx rows=1 width=xxx)
+ Index Cond: (c1 = 1)
+ -> Seq Scan on p2c1c1 p2_3 (cost={inf}..{inf} rows=1 width=xxx)
+ Filter: (c1 = 1)
----
---- No. S-3-12 specified same table
-- No. S-3-12-1
/*+IndexScan(ti1) BitmapScan(ti1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "IndexScan(ti1) BitmapScan(ti1)"
+INFO: pg_hint_plan: hint syntax error at or near "IndexScan(ti1) BitmapScan(ti1)"
DETAIL: Conflict scan method hint.
LOG: pg_hint_plan:
used hint:
Bitmap Heap Scan on ti1
Recheck Cond: (c1 = 1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on ti1_uniq
+ -> Bitmap Index Scan on ti1_hash
Index Cond: (c1 = 1)
(5 rows)
-- No. S-3-12-2
/*+IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)"
+INFO: pg_hint_plan: hint syntax error at or near "IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)"
DETAIL: Conflict scan method hint.
+LOG: available indexes for BitmapScan(ti1): ti1_btree
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_btree)
-- No. S-3-12-3
/*+BitmapScan(ti1) IndexScan(ti1) BitmapScan(ti1)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "BitmapScan(ti1) IndexScan(ti1) BitmapScan(ti1)"
+INFO: pg_hint_plan: hint syntax error at or near "BitmapScan(ti1) IndexScan(ti1) BitmapScan(ti1)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "IndexScan(ti1) BitmapScan(ti1)"
+INFO: pg_hint_plan: hint syntax error at or near "IndexScan(ti1) BitmapScan(ti1)"
DETAIL: Conflict scan method hint.
LOG: pg_hint_plan:
used hint:
Bitmap Heap Scan on ti1
Recheck Cond: (c1 = 1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on ti1_uniq
+ -> Bitmap Index Scan on ti1_hash
Index Cond: (c1 = 1)
(5 rows)
-- No. S-3-12-4
/*+BitmapScan(ti1 ti1_hash) IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "BitmapScan(ti1 ti1_hash) IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)"
+INFO: pg_hint_plan: hint syntax error at or near "BitmapScan(ti1 ti1_hash) IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)"
DETAIL: Conflict scan method hint.
-INFO: hint syntax error at or near "IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)"
+INFO: pg_hint_plan: hint syntax error at or near "IndexScan(ti1 ti1_pkey) BitmapScan(ti1 ti1_btree)"
DETAIL: Conflict scan method hint.
+LOG: available indexes for BitmapScan(ti1): ti1_btree
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_btree)
(5 rows)
----
----- No. S-3-13 message output
+---- No. S-3-13 message output of hint
----
-- No. S-3-13-1
/*+SeqScan(ti1)*/
-- No. S-3-13-2
/*+SeqScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey)"
-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(ti1 ti1_pkey)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-3
/*+SeqScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey ti1_btree)"
-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(ti1 ti1_pkey ti1_btree)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
QUERY PLAN
----------------------------------
- Index Scan using ti1_uniq on ti1
+ Index Scan using ti1_hash on ti1
Index Cond: (c1 = 1)
Filter: (ctid = '(1,1)'::tid)
(3 rows)
-- No. S-3-13-5
/*+IndexScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_pkey
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_pkey)
-- No. S-3-13-6
/*+IndexScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for IndexScan(ti1): ti1_btree ti1_pkey
LOG: pg_hint_plan:
used hint:
IndexScan(ti1 ti1_pkey ti1_btree)
Bitmap Heap Scan on ti1
Recheck Cond: (c1 = 1)
Filter: (ctid = '(1,1)'::tid)
- -> Bitmap Index Scan on ti1_uniq
+ -> Bitmap Index Scan on ti1_hash
Index Cond: (c1 = 1)
(5 rows)
-- No. S-3-13-8
/*+BitmapScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_pkey
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_pkey)
-- No. S-3-13-9
/*+BitmapScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
+LOG: available indexes for BitmapScan(ti1): ti1_btree ti1_pkey
LOG: pg_hint_plan:
used hint:
BitmapScan(ti1 ti1_pkey ti1_btree)
-- No. S-3-13-11
/*+TidScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: TidScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+TidScan(ti1 ti1_pkey)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-12
/*+TidScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey ti1_btree)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: TidScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+TidScan(ti1 ti1_pkey ti1_btree)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-14
/*+NoSeqScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoSeqScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoSeqScan(ti1 ti1_pkey)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-15
/*+NoSeqScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey ti1_btree)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoSeqScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoSeqScan(ti1 ti1_pkey ti1_btree)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-17
/*+NoIndexScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoIndexScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoIndexScan(ti1 ti1_pkey)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-18
/*+NoIndexScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey ti1_btree)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoIndexScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoIndexScan(ti1 ti1_pkey ti1_btree)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-20
/*+NoBitmapScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoBitmapScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoBitmapScan(ti1 ti1_pkey)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-21
/*+NoBitmapScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey ti1_btree)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoBitmapScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoBitmapScan(ti1 ti1_pkey ti1_btree)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
QUERY PLAN
----------------------------------
- Index Scan using ti1_uniq on ti1
+ Index Scan using ti1_hash on ti1
Index Cond: (c1 = 1)
Filter: (ctid = '(1,1)'::tid)
(3 rows)
-- No. S-3-13-23
/*+NoTidScan(ti1 ti1_pkey)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoTidScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoTidScan(ti1 ti1_pkey)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
-- No. S-3-13-24
/*+NoTidScan(ti1 ti1_pkey ti1_btree)*/
EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c1 = 1 AND ctid = '(1,1)';
-INFO: hint syntax error at or near "ti1_pkey ti1_btree)"
-DETAIL: Closed parenthesis is necessary.
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoTidScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoTidScan(ti1 ti1_pkey ti1_btree)
+
QUERY PLAN
-----------------------------------
Tid Scan on ti1
Filter: (c1 = 1)
(3 rows)
+-- No. S-3-13-25
+/*+IndexOnlyScan(ti1)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_uniq on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
+
+-- No. S-3-13-26
+/*+IndexOnlyScan(ti1 ti1_pkey)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+---------------------------------------
+ Index Only Scan using ti1_pkey on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
+
+-- No. S-3-13-27
+/*+IndexOnlyScan(ti1 ti1_pkey ti1_btree)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 >= 1;
+LOG: available indexes for IndexOnlyScan(ti1): ti1_btree ti1_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexOnlyScan(ti1 ti1_pkey ti1_btree)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------------
+ Index Only Scan using ti1_btree on ti1
+ Index Cond: (c1 >= 1)
+(2 rows)
+
+-- No. S-3-13-28
+/*+NoIndexOnlyScan(ti1)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+LOG: pg_hint_plan:
+used hint:
+NoIndexOnlyScan(ti1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+----------------------------------
+ Index Scan using ti1_hash on ti1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+-- No. S-3-13-29
+/*+NoIndexOnlyScan(ti1 ti1_pkey)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoIndexOnlyScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoIndexOnlyScan(ti1 ti1_pkey)
+
+ QUERY PLAN
+----------------------------------
+ Index Scan using ti1_hash on ti1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+-- No. S-3-13-30
+/*+NoIndexOnlyScan(ti1 ti1_pkey ti1_btree)*/
+EXPLAIN (COSTS false) SELECT c1 FROM s1.ti1 WHERE c1 = 1;
+INFO: pg_hint_plan: hint syntax error at or near ""
+DETAIL: NoIndexOnlyScan hint accepts only one relation.
+LOG: pg_hint_plan:
+used hint:
+not used hint:
+duplication hint:
+error hint:
+NoIndexOnlyScan(ti1 ti1_pkey ti1_btree)
+
+ QUERY PLAN
+----------------------------------
+ Index Scan using ti1_hash on ti1
+ Index Cond: (c1 = 1)
+(2 rows)
+
+----
+---- No. S-3-14 regular expression
+----
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+ QUERY PLAN
+--------------------------------
+ Index Scan using ti1_i4 on ti1
+ Index Cond: (c2 = 1)
+(2 rows)
+
+-- No. S-3-14-1
+/*+IndexScanRegexp(ti1 ti1_.*_key)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScanRegexp(ti1): ti1_c2_key
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(ti1 ti1_.*_key)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+------------------------------------
+ Index Scan using ti1_c2_key on ti1
+ Index Cond: (c2 = 1)
+(2 rows)
+
+-- No. S-3-14-2
+/*+IndexScanRegexp(ti1 ti1_i.)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScanRegexp(ti1): ti1_i4 ti1_i3 ti1_i2 ti1_i1
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(ti1 ti1_i.)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------
+ Index Scan using ti1_i4 on ti1
+ Index Cond: (c2 = 1)
+(2 rows)
+
+-- No. S-3-14-3
+/*+IndexScanRegexp(ti1 no.*_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScanRegexp(ti1):
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(ti1 no.*_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on ti1
+ Filter: (c2 = 1)
+(2 rows)
+
+-- No. S-3-14-4
+/*+IndexScanRegexp(p1 .*pkey)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
+LOG: available indexes for IndexScanRegexp(p1): p1_pkey
+LOG: available indexes for IndexScanRegexp(p1c1): p1c1_pkey
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(p1 .*pkey)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------------------------
+ Append
+ -> Index Scan using p1_pkey on p1 p1_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_pkey on p1c1 p1_2
+ Index Cond: (c1 = 1)
+(5 rows)
+
+-- No. S-3-14-5
+/*+IndexScanRegexp(p1 p1.*i)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
+LOG: available indexes for IndexScanRegexp(p1): p1_i2 p1_i
+LOG: available indexes for IndexScanRegexp(p1c1): p1c1_i p1c1_c4_expr_idx
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(p1 p1.*i)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------------------
+ Append
+ -> Index Scan using p1_i on p1 p1_1
+ Index Cond: (c1 = 1)
+ -> Index Scan using p1c1_i on p1c1 p1_2
+ Index Cond: (c1 = 1)
+(5 rows)
+
+-- No. S-3-14-6
+/*+IndexScanRegexp(p1 no.*_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.p1 WHERE c1 = 1;
+LOG: available indexes for IndexScanRegexp(p1):
+LOG: available indexes for IndexScanRegexp(p1c1):
+LOG: pg_hint_plan:
+used hint:
+IndexScanRegexp(p1 no.*_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+-----------------------------
+ Append
+ -> Seq Scan on p1 p1_1
+ Filter: (c1 = 1)
+ -> Seq Scan on p1c1 p1_2
+ Filter: (c1 = 1)
+(5 rows)
+
+----
+---- No. S-3-15 message output of index candidate
+----
+-- No. S-3-15-1
+/*+IndexScan(ti1 ti1_i1)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScan(ti1): ti1_i1
+LOG: pg_hint_plan:
+used hint:
+IndexScan(ti1 ti1_i1)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------
+ Index Scan using ti1_i1 on ti1
+ Index Cond: (c2 = 1)
+(2 rows)
+
+-- No. S-3-15-2
+/*+IndexScan(ti1 not_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScan(ti1):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(ti1 not_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on ti1
+ Filter: (c2 = 1)
+(2 rows)
+
+-- No. S-3-15-3
+/*+IndexScan(ti1 ti1_i1 ti1_i2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScan(ti1): ti1_i2 ti1_i1
+LOG: pg_hint_plan:
+used hint:
+IndexScan(ti1 ti1_i1 ti1_i2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------
+ Index Scan using ti1_i2 on ti1
+ Index Cond: (c2 = 1)
+(2 rows)
+
+-- No. S-3-15-4
+/*+IndexScan(ti1 ti1_i1 not_exist)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScan(ti1): ti1_i1
+LOG: pg_hint_plan:
+used hint:
+IndexScan(ti1 ti1_i1 not_exist)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------------------
+ Index Scan using ti1_i1 on ti1
+ Index Cond: (c2 = 1)
+(2 rows)
+
+-- No. S-3-15-5
+/*+IndexScan(ti1 not_exist1 not_exist2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.ti1 WHERE c2 = 1;
+LOG: available indexes for IndexScan(ti1):
+LOG: pg_hint_plan:
+used hint:
+IndexScan(ti1 not_exist1 not_exist2)
+not used hint:
+duplication hint:
+error hint:
+
+ QUERY PLAN
+--------------------
+ Seq Scan on ti1
+ Filter: (c2 = 1)
+(2 rows)
+
+DELETE FROM pg_db_role_setting WHERE setrole = (SELECT oid FROM pg_roles WHERE rolname = current_user);
+ALTER SYSTEM SET session_preload_libraries TO DEFAULT;
+SELECT pg_reload_conf();
+ pg_reload_conf
+----------------
+ t
+(1 row)
+
+\! rm results/ut-S.tmpout
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