diff options
Diffstat (limited to 'src/backend')
| -rw-r--r-- | src/backend/optimizer/prep/prepunion.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/backend/optimizer/prep/prepunion.c b/src/backend/optimizer/prep/prepunion.c index 55665824179..72539545656 100644 --- a/src/backend/optimizer/prep/prepunion.c +++ b/src/backend/optimizer/prep/prepunion.c @@ -773,6 +773,12 @@ generate_union_paths(SetOperationStmt *op, PlannerInfo *root, RelOptInfo *rel = lfirst(lc); Path *ordered_path; + /* + * Record the relids so that we can identify the correct + * UPPERREL_SETOP RelOptInfo below. + */ + relids = bms_add_members(relids, rel->relids); + /* Skip any UNION children that are proven not to yield any rows */ if (is_dummy_rel(rel)) continue; @@ -815,8 +821,6 @@ generate_union_paths(SetOperationStmt *op, PlannerInfo *root, partial_pathlist = lappend(partial_pathlist, linitial(rel->partial_pathlist)); } - - relids = bms_add_members(relids, rel->relids); } /* Build result relation. */ |