From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Fri, 6 Jan 2006 20:11:31 +0000 (+0000)
Subject: Fix failure to apply domain constraints to a NULL constant that's added to
X-Git-Url: http://waps.l3s.uni-hannover.de/gitweb/?a=commitdiff_plain;h=3efd7284a056c65070e7716e303de179310df533;p=users%2Fbernd%2Fpostgres.git

Fix failure to apply domain constraints to a NULL constant that's added to
an INSERT target list during rule rewriting.  Per report from John Supplee.
---

diff --git a/src/backend/rewrite/rewriteManip.c b/src/backend/rewrite/rewriteManip.c
index 735613bf6d..ea32fac547 100644
--- a/src/backend/rewrite/rewriteManip.c
+++ b/src/backend/rewrite/rewriteManip.c
@@ -18,6 +18,7 @@
 #include "optimizer/tlist.h"
 #include "parser/parsetree.h"
 #include "parser/parse_clause.h"
+#include "parser/parse_coerce.h"
 #include "rewrite/rewriteManip.h"
 #include "utils/lsyscache.h"
 
@@ -904,7 +905,11 @@ ResolveNew_mutator(Node *node, ResolveNew_context *context)
 				else
 				{
 					/* Otherwise replace unmatched var with a null */
-					return (Node *) makeNullConst(var->vartype);
+					/* need coerce_to_domain in case of NOT NULL domain constraint */
+					return coerce_to_domain((Node *) makeNullConst(var->vartype),
+											InvalidOid,
+											var->vartype,
+											COERCE_IMPLICIT_CAST);
 				}
 			}
 			else