summaryrefslogtreecommitdiffstats
path: root/src/backend/optimizer/util/pathnode.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/backend/optimizer/util/pathnode.c')
-rw-r--r--src/backend/optimizer/util/pathnode.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/backend/optimizer/util/pathnode.c b/src/backend/optimizer/util/pathnode.c
index 841be37..bd23226 100644
--- a/src/backend/optimizer/util/pathnode.c
+++ b/src/backend/optimizer/util/pathnode.c
@@ -1708,8 +1708,13 @@ create_unique_path(PlannerInfo *root, RelOptInfo *rel, Path *subpath,
pathnode->path.pathkeys = NIL;
pathnode->subpath = subpath;
- pathnode->in_operators = sjinfo->semi_operators;
- pathnode->uniq_exprs = sjinfo->semi_rhs_exprs;
+
+ /*
+ * Under GEQO, the sjinfo might be short-lived, so we'd better make copies
+ * of data structures we extract from it.
+ */
+ pathnode->in_operators = copyObject(sjinfo->semi_operators);
+ pathnode->uniq_exprs = copyObject(sjinfo->semi_rhs_exprs);
/*
* If the input is a relation and it has a unique index that proves the