結合方式のヒントの挙動確認試験(J-3-1-*)を追加した。

diff --git a/expected/ut-J.out b/expected/ut-J.out
index cc15d86..1ed3e38 100644 (file)
--- a/expected/ut-J.out
+++ b/expected/ut-J.out
@@ -3737,7 +3737,7 @@ MergeJoin(*VALUES* t1 t2 t3)
 ----
 ---- No. J-3-1 join method hint
 ----
--- No. J-3-1-1
+-- No. J-3-1-1~6
 SET enable_nestloop TO on;
 SET enable_mergejoin TO off;
 SET enable_hashjoin TO off;
@@ -3767,3 +3767,344 @@ error hint:
          Index Cond: (c1 = t2.c1)
 (4 rows)
 
+/*+HashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+HashJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+          QUERY PLAN          
+------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+/*+MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+MergeJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoNestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoNestLoop(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoHashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoHashJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Nested Loop
+   ->  Seq Scan on t2
+   ->  Index Scan using t1_i1 on t1
+         Index Cond: (c1 = t2.c1)
+(4 rows)
+
+/*+NoMergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoMergeJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+          QUERY PLAN          
+------------------------------
+ Nested Loop
+   ->  Seq Scan on t2
+   ->  Index Scan using t1_i1 on t1
+         Index Cond: (c1 = t2.c1)
+(4 rows)
+
+-- No. J-3-1-7~12
+SET enable_nestloop TO off;
+SET enable_mergejoin TO off;
+SET enable_hashjoin TO on;
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+          QUERY PLAN          
+------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+/*+NestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NestLoop(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Nested Loop
+   ->  Seq Scan on t2
+   ->  Index Scan using t1_i1 on t1
+         Index Cond: (c1 = t2.c1)
+(4 rows)
+
+/*+HashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+HashJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+          QUERY PLAN          
+------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+/*+MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+MergeJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoNestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoNestLoop(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+/*+NoHashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoHashJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoMergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoMergeJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+          QUERY PLAN          
+------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+-- No. J-3-1-13~18
+SET enable_nestloop TO off;
+SET enable_mergejoin TO on;
+SET enable_hashjoin TO off;
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NestLoop(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Nested Loop
+   ->  Seq Scan on t2
+   ->  Index Scan using t1_i1 on t1
+         Index Cond: (c1 = t2.c1)
+(4 rows)
+
+/*+HashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+HashJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+          QUERY PLAN          
+------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+/*+MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+MergeJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoNestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoNestLoop(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoHashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoHashJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+             QUERY PLAN             
+------------------------------------
+ Merge Join
+   Merge Cond: (t1.c1 = t2.c1)
+   ->  Index Scan using t1_i1 on t1
+   ->  Sort
+         Sort Key: t2.c1
+         ->  Seq Scan on t2
+(6 rows)
+
+/*+NoMergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+LOG:  pg_hint_plan:
+used hint:
+NoMergeJoin(t1 t2)
+not used hint:
+duplication hint:
+error hint:
+
+          QUERY PLAN          
+------------------------------
+ Hash Join
+   Hash Cond: (t1.c1 = t2.c1)
+   ->  Seq Scan on t1
+   ->  Hash
+         ->  Seq Scan on t2
+(5 rows)
+
+SET enable_nestloop TO on;
+SET enable_mergejoin TO on;
+SET enable_hashjoin TO on;

diff --git a/sql/ut-J.sql b/sql/ut-J.sql
index 0366689..42cc798 100644 (file)
--- a/sql/ut-J.sql
+++ b/sql/ut-J.sql
@@ -618,11 +618,61 @@ EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2, (VALUES(1,1,1,'1')) AS t3 (c1,
 ---- No. J-3-1 join method hint
 ----
 
--- No. J-3-1-1
+-- No. J-3-1-1~6
 SET enable_nestloop TO on;
 SET enable_mergejoin TO off;
 SET enable_hashjoin TO off;
 EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
 /*+NestLoop(t1 t2)*/
 EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+HashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoNestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoHashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoMergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+
+-- No. J-3-1-7~12
+SET enable_nestloop TO off;
+SET enable_mergejoin TO off;
+SET enable_hashjoin TO on;
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+HashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoNestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoHashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoMergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+
+-- No. J-3-1-13~18
+SET enable_nestloop TO off;
+SET enable_mergejoin TO on;
+SET enable_hashjoin TO off;
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+HashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+MergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoNestLoop(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoHashJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+/*+NoMergeJoin(t1 t2)*/
+EXPLAIN (COSTS false) SELECT * FROM s1.t1, s1.t2 WHERE t1.c1 = t2.c1;
+
+SET enable_nestloop TO on;
+SET enable_mergejoin TO on;
+SET enable_hashjoin TO on;