diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/optimizer/util/pathnode.c | 6 | ||||
| -rw-r--r-- | src/test/regress/expected/inherit.out | 31 | ||||
| -rw-r--r-- | src/test/regress/sql/inherit.sql | 10 |
3 files changed, 44 insertions, 3 deletions
diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c index 46778aaefd3..ec4a093d9fb 100644 --- a/src/backend/optimizer/util/pathnode.c +++ b/src/backend/optimizer/util/pathnode.c @@ -1216,7 +1216,7 @@ create_append_path(RelOptInfo *rel, List *subpaths, Relids required_outer, pathnode->path.parallel_workers = parallel_workers; pathnode->path.pathkeys = NIL; /* result is always considered * unsorted */ - pathnode->partitioned_rels = partitioned_rels; + pathnode->partitioned_rels = list_copy(partitioned_rels); pathnode->subpaths = subpaths; /* @@ -1276,7 +1276,7 @@ create_merge_append_path(PlannerInfo *root, pathnode->path.parallel_safe = rel->consider_parallel; pathnode->path.parallel_workers = 0; pathnode->path.pathkeys = pathkeys; - pathnode->partitioned_rels = partitioned_rels; + pathnode->partitioned_rels = list_copy(partitioned_rels); pathnode->subpaths = subpaths; /* @@ -3238,7 +3238,7 @@ create_modifytable_path(PlannerInfo *root, RelOptInfo *rel, pathnode->operation = operation; pathnode->canSetTag = canSetTag; pathnode->nominalRelation = nominalRelation; - pathnode->partitioned_rels = partitioned_rels; + pathnode->partitioned_rels = list_copy(partitioned_rels); pathnode->resultRelations = resultRelations; pathnode->subpaths = subpaths; pathnode->subroots = subroots; diff --git a/src/test/regress/expected/inherit.out b/src/test/regress/expected/inherit.out index af7090ba0d6..35d182d5992 100644 --- a/src/test/regress/expected/inherit.out +++ b/src/test/regress/expected/inherit.out @@ -1918,3 +1918,34 @@ explain (costs off) select * from mcrparted where a = 20 and c > 20; -- scans mc (7 rows) drop table mcrparted; +-- check that partitioned table Appends cope with being referenced in +-- subplans +create table parted_minmax (a int, b varchar(16)) partition by range (a); +create table parted_minmax1 partition of parted_minmax for values from (1) to (10); +create index parted_minmax1i on parted_minmax1 (a, b); +insert into parted_minmax values (1,'12345'); +explain (costs off) select min(a), max(a) from parted_minmax where b = '12345'; + QUERY PLAN +------------------------------------------------------------------------------------------------------- + Result + InitPlan 1 (returns $0) + -> Limit + -> Merge Append + Sort Key: parted_minmax1.a + -> Index Only Scan using parted_minmax1i on parted_minmax1 + Index Cond: ((a IS NOT NULL) AND (b = '12345'::text)) + InitPlan 2 (returns $1) + -> Limit + -> Merge Append + Sort Key: parted_minmax1_1.a DESC + -> Index Only Scan Backward using parted_minmax1i on parted_minmax1 parted_minmax1_1 + Index Cond: ((a IS NOT NULL) AND (b = '12345'::text)) +(13 rows) + +select min(a), max(a) from parted_minmax where b = '12345'; + min | max +-----+----- + 1 | 1 +(1 row) + +drop table parted_minmax; diff --git a/src/test/regress/sql/inherit.sql b/src/test/regress/sql/inherit.sql index 7f34f43ec0c..70fe971d51f 100644 --- a/src/test/regress/sql/inherit.sql +++ b/src/test/regress/sql/inherit.sql @@ -661,3 +661,13 @@ explain (costs off) select * from mcrparted where a > -1; -- scans all partition explain (costs off) select * from mcrparted where a = 20 and abs(b) = 10 and c > 10; -- scans mcrparted4 explain (costs off) select * from mcrparted where a = 20 and c > 20; -- scans mcrparted3, mcrparte4, mcrparte5 drop table mcrparted; + +-- check that partitioned table Appends cope with being referenced in +-- subplans +create table parted_minmax (a int, b varchar(16)) partition by range (a); +create table parted_minmax1 partition of parted_minmax for values from (1) to (10); +create index parted_minmax1i on parted_minmax1 (a, b); +insert into parted_minmax values (1,'12345'); +explain (costs off) select min(a), max(a) from parted_minmax where b = '12345'; +select min(a), max(a) from parted_minmax where b = '12345'; +drop table parted_minmax; |