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-rw-r--r--src/backend/commands/indexcmds.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 26f3b2cd7a4..663407c65d3 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -1219,7 +1219,7 @@ DefineIndex(Oid relationId,
tup = SearchSysCache1(INDEXRELID,
ObjectIdGetDatum(indexRelationId));
- if (!tup)
+ if (!HeapTupleIsValid(tup))
elog(ERROR, "cache lookup failed for index %u",
indexRelationId);
newtup = heap_copytuple(tup);