From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Fri, 6 Jan 2006 20:11:36 +0000 (+0000)
Subject: Fix failure to apply domain constraints to a NULL constant that's added to
X-Git-Url: http://git.postgresql.org/gitweb/?a=commitdiff_plain;h=644b778420147954c9e80e17b428c1aec586b391;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 96a5964825..c6998f17c3 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"
 
@@ -815,7 +816,10 @@ ResolveNew_mutator(Node *node, ResolveNew_context *context)
 				else
 				{
 					/* Otherwise replace unmatched var with a null */
-					return (Node *) makeNullConst(var->vartype);
+					/* need coerce_type_constraints in case of NOT NULL domain constraint */
+					return coerce_type_constraints((Node *) makeNullConst(var->vartype),
+												   var->vartype,
+												   COERCE_IMPLICIT_CAST);
 				}
 			}
 			else