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-rw-r--r--src/backend/optimizer/util/clauses.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/optimizer/util/clauses.c b/src/backend/optimizer/util/clauses.c
index 602d17dfb45..93add27dbe2 100644
--- a/src/backend/optimizer/util/clauses.c
+++ b/src/backend/optimizer/util/clauses.c
@@ -2366,7 +2366,7 @@ rowtype_field_matches(Oid rowtypeid, int fieldnum,
ReleaseTupleDesc(tupdesc);
return false;
}
- attr = tupdesc->attrs[fieldnum - 1];
+ attr = TupleDescAttr(tupdesc, fieldnum - 1);
if (attr->attisdropped ||
attr->atttypid != expectedtype ||
attr->atttypmod != expectedtypmod ||