diff options
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index 9ed73da0f79..afc663cfd8f 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -2243,26 +2243,31 @@ set_subquery_pathlist(PlannerInfo *root, RelOptInfo *rel, pathkeys, required_outer)); } - /* If consider_parallel is false, there should be no partial paths. */ - Assert(sub_final_rel->consider_parallel || - sub_final_rel->partial_pathlist == NIL); - - /* Same for partial paths. */ - foreach(lc, sub_final_rel->partial_pathlist) + /* If outer rel allows parallelism, do same for partial paths. */ + if (rel->consider_parallel && bms_is_empty(required_outer)) { - Path *subpath = (Path *) lfirst(lc); - List *pathkeys; - - /* Convert subpath's pathkeys to outer representation */ - pathkeys = convert_subquery_pathkeys(root, - rel, - subpath->pathkeys, - make_tlist_from_pathtarget(subpath->pathtarget)); + /* If consider_parallel is false, there should be no partial paths. */ + Assert(sub_final_rel->consider_parallel || + sub_final_rel->partial_pathlist == NIL); - /* Generate outer path using this subpath */ - add_partial_path(rel, (Path *) - create_subqueryscan_path(root, rel, subpath, - pathkeys, required_outer)); + /* Same for partial paths. */ + foreach(lc, sub_final_rel->partial_pathlist) + { + Path *subpath = (Path *) lfirst(lc); + List *pathkeys; + + /* Convert subpath's pathkeys to outer representation */ + pathkeys = convert_subquery_pathkeys(root, + rel, + subpath->pathkeys, + make_tlist_from_pathtarget(subpath->pathtarget)); + + /* Generate outer path using this subpath */ + add_partial_path(rel, (Path *) + create_subqueryscan_path(root, rel, subpath, + pathkeys, + required_outer)); + } } } |