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-rw-r--r--src/backend/commands/tablecmds.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 9f34c735028..173b24dab82 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.274 2008/12/15 21:35:31 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/commands/tablecmds.c,v 1.275 2008/12/28 18:53:55 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -5506,6 +5506,10 @@ ATPrepAlterColumnType(List **wqueue,
ereport(ERROR,
(errcode(ERRCODE_GROUPING_ERROR),
errmsg("cannot use aggregate function in transform expression")));
+ if (pstate->p_hasWindowFuncs)
+ ereport(ERROR,
+ (errcode(ERRCODE_WINDOWING_ERROR),
+ errmsg("cannot use window function in transform expression")));
}
else
{