diff options
Diffstat (limited to '')
| -rw-r--r-- | src/test/regress/sql/partition_join.sql | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/test/regress/sql/partition_join.sql b/src/test/regress/sql/partition_join.sql index 67f5063..04d7adb 100644 --- a/src/test/regress/sql/partition_join.sql +++ b/src/test/regress/sql/partition_join.sql @@ -91,6 +91,33 @@ SELECT t1.a, ss.t2a, ss.t2c FROM prt1 t1 LEFT JOIN LATERAL (SELECT t2.a AS t2a, t3.a AS t3a, t2.b t2b, t2.c t2c, least(t1.a,t2.a,t3.a) FROM prt1 t2 JOIN prt2 t3 ON (t2.a = t3.b)) ss ON t1.c = ss.t2c WHERE (t1.b + coalesce(ss.t2b, 0)) = 0 ORDER BY t1.a; +SET max_parallel_workers_per_gather = 0; +-- If there are lateral references to the other relation in sample scan, +-- we cannot generate a partitionwise join. +EXPLAIN (COSTS OFF) +SELECT * FROM prt1 t1 JOIN LATERAL + (SELECT * FROM prt1 t2 TABLESAMPLE SYSTEM (t1.a) REPEATABLE(t1.b)) s + ON t1.a = s.a; + +-- If there are lateral references to the other relation in scan's restriction +-- clauses, we cannot generate a partitionwise join. +EXPLAIN (COSTS OFF) +SELECT count(*) FROM prt1 t1 LEFT JOIN LATERAL + (SELECT t1.b AS t1b, t2.* FROM prt2 t2) s + ON t1.a = s.b WHERE s.t1b = s.a; +SELECT count(*) FROM prt1 t1 LEFT JOIN LATERAL + (SELECT t1.b AS t1b, t2.* FROM prt2 t2) s + ON t1.a = s.b WHERE s.t1b = s.a; + +EXPLAIN (COSTS OFF) +SELECT count(*) FROM prt1 t1 LEFT JOIN LATERAL + (SELECT t1.b AS t1b, t2.* FROM prt2 t2) s + ON t1.a = s.b WHERE s.t1b = s.b; +SELECT count(*) FROM prt1 t1 LEFT JOIN LATERAL + (SELECT t1.b AS t1b, t2.* FROM prt2 t2) s + ON t1.a = s.b WHERE s.t1b = s.b; +RESET max_parallel_workers_per_gather; + -- bug with inadequate sort key representation SET enable_partitionwise_aggregate TO true; SET enable_hashjoin TO false; @@ -378,6 +405,27 @@ SELECT * FROM prt1_l t1 LEFT JOIN LATERAL (SELECT t2.a AS t2a, t2.c AS t2c, t2.b AS t2b, t3.b AS t3b, least(t1.a,t2.a,t3.b) FROM prt1_l t2 JOIN prt2_l t3 ON (t2.a = t3.b AND t2.c = t3.c)) ss ON t1.a = ss.t2a AND t1.c = ss.t2c WHERE t1.b = 0 ORDER BY t1.a; +SET max_parallel_workers_per_gather = 0; +-- If there are lateral references to the other relation in sample scan, +-- we cannot generate a partitionwise join. +EXPLAIN (COSTS OFF) +SELECT * FROM prt1_l t1 JOIN LATERAL + (SELECT * FROM prt1_l t2 TABLESAMPLE SYSTEM (t1.a) REPEATABLE(t1.b)) s + ON t1.a = s.a AND t1.b = s.b AND t1.c = s.c; + +-- If there are lateral references to the other relation in scan's restriction +-- clauses, we cannot generate a partitionwise join. +EXPLAIN (COSTS OFF) +SELECT COUNT(*) FROM prt1_l t1 LEFT JOIN LATERAL + (SELECT t1.b AS t1b, t2.* FROM prt2_l t2) s + ON t1.a = s.b AND t1.b = s.a AND t1.c = s.c + WHERE s.t1b = s.a; +SELECT COUNT(*) FROM prt1_l t1 LEFT JOIN LATERAL + (SELECT t1.b AS t1b, t2.* FROM prt2_l t2) s + ON t1.a = s.b AND t1.b = s.a AND t1.c = s.c + WHERE s.t1b = s.a; +RESET max_parallel_workers_per_gather; + -- join with one side empty EXPLAIN (COSTS OFF) SELECT t1.a, t1.c, t2.b, t2.c FROM (SELECT * FROM prt1_l WHERE a = 1 AND a = 2) t1 RIGHT JOIN prt2_l t2 ON t1.a = t2.b AND t1.b = t2.a AND t1.c = t2.c; |