-- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -2166,9 +2166,9 @@ RelationClearRelation(Relation relation, bool rebuild)
/* ... but actually, we don't have to update newrel->rd_rel */
memcpy(relation->rd_rel, newrel->rd_rel, CLASS_TUPLE_SIZE);
/* preserve old tupledesc and rules if no logical change */
- if (keep_tupdesc)
+ if (!keep_tupdesc)
SWAPFIELD(TupleDesc, rd_att);
- if (keep_rules)
+ if (!keep_rules)
{
SWAPFIELD(RuleLock *, rd_rules);
SWAPFIELD(MemoryContext, rd_rulescxt);
