diff options
| -rw-r--r-- | src/backend/optimizer/plan/subselect.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c index e35ebea8b43..6d003cc8e5c 100644 --- a/src/backend/optimizer/plan/subselect.c +++ b/src/backend/optimizer/plan/subselect.c @@ -1271,15 +1271,15 @@ convert_ANY_sublink_to_join(PlannerInfo *root, SubLink *sublink, Assert(sublink->subLinkType == ANY_SUBLINK); /* - * If the sub-select refers to any Vars of the parent query, we so let's - * considering it as LATERAL. (Vars of higher levels don't matter here.) + * If the sub-select contains any Vars of the parent query, we treat it as + * LATERAL. (Vars from higher levels don't matter here.) */ sub_ref_outer_relids = pull_varnos_of_level(NULL, (Node *) subselect, 1); use_lateral = !bms_is_empty(sub_ref_outer_relids); /* - * Check that sub-select refers nothing outside of available_rels of the - * parent query. + * Can't convert if the sub-select contains parent-level Vars of relations + * not in available_rels. */ if (!bms_is_subset(sub_ref_outer_relids, available_rels)) return NULL; |