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-rw-r--r--src/backend/catalog/pg_constraint.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/catalog/pg_constraint.c b/src/backend/catalog/pg_constraint.c
index 106b8df6e4c..42d7d6caca0 100644
--- a/src/backend/catalog/pg_constraint.c
+++ b/src/backend/catalog/pg_constraint.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/catalog/pg_constraint.c,v 1.55 2010/08/07 02:44:06 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/catalog/pg_constraint.c,v 1.56 2010/09/05 15:45:42 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -836,6 +836,9 @@ check_functional_grouping(Oid relid,
/* Only PK constraints are of interest for now, see comment above */
if (con->contype != CONSTRAINT_PRIMARY)
continue;
+ /* Constraint must be non-deferrable */
+ if (con->condeferrable)
+ continue;
/* Extract the conkey array, ie, attnums of PK's columns */
adatum = heap_getattr(tuple, Anum_pg_constraint_conkey,