"John Supplee" <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> Works for me:

> You need to modify your test case slightly.

OK, got it.  Patch for 8.1 is attached if you need it.  Thanks for the
test case.

                        regards, tom lane


Index: rewriteManip.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/rewrite/rewriteManip.c,v
retrieving revision 1.92.2.2
diff -c -r1.92.2.2 rewriteManip.c
*** rewriteManip.c      23 Nov 2005 17:21:22 -0000      1.92.2.2
--- rewriteManip.c      6 Jan 2006 19:41:30 -0000
***************
*** 18,23 ****
--- 18,24 ----
  #include "optimizer/clauses.h"
  #include "optimizer/tlist.h"
  #include "parser/parsetree.h"
+ #include "parser/parse_coerce.h"
  #include "parser/parse_relation.h"
  #include "rewrite/rewriteManip.h"
  #include "utils/lsyscache.h"
***************
*** 838,844 ****
                else
                {
                        /* Otherwise replace unmatched var with a null */
!                       return (Node *) makeNullConst(var->vartype);
                }
        }
        else
--- 839,851 ----
                else
                {
                        /* Otherwise replace unmatched var with a null */
!                       /* 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,
!                                                                       false,
!                                                                       false);
                }
        }
        else

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