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-rw-r--r--src/backend/nodes/copyfuncs.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/backend/nodes/copyfuncs.c b/src/backend/nodes/copyfuncs.c
index ef6c1a1828b..19515ac0268 100644
--- a/src/backend/nodes/copyfuncs.c
+++ b/src/backend/nodes/copyfuncs.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.10 1997/09/08 21:43:57 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/copyfuncs.c,v 1.11 1997/09/12 22:07:59 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -725,7 +725,7 @@ _copyConst(Const *from)
* puts in the right values here.
* ----------------
*/
- if (cached_type != from->consttype)
+ if (!from->constisnull && cached_type != from->consttype) {
{
HeapTuple typeTuple;
TypeTupleForm typeStruct;