Fix allocation of UniqueRelInfo

Reported-by: Richard Guo
Discussion: https://postgr.es/m/CAMbWs4_STsG1PKQBuvQC8W4sPo3KvML3=jOTjKLUYQuK3g8cpQ@mail.gmail.com

diff --git a/src/backend/optimizer/plan/analyzejoins.c b/src/backend/optimizer/plan/analyzejoins.c
index ccf07b2077cc97983c51d5ead0786b3c8855b137..953e381d6f933e7d1e3cfce52793526dd99674b2 100644 (file)
--- a/src/backend/optimizer/plan/analyzejoins.c
+++ b/src/backend/optimizer/plan/analyzejoins.c
@@ -1321,7 +1321,7 @@ innerrel_is_unique_ext(PlannerInfo *root,
         * supersets of them anyway.
         */
        old_context = MemoryContextSwitchTo(root->planner_cxt);
-       uniqueRelInfo = palloc(sizeof(UniqueRelInfo));
+       uniqueRelInfo = makeNode(UniqueRelInfo);
        uniqueRelInfo->extra_clauses = outer_exprs;
        uniqueRelInfo->outerrelids = bms_copy(outerrelids);
        innerrel->unique_for_rels = lappend(innerrel->unique_for_rels,