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Commitf1dda4c

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Fix outfuncs.c to dump A_Const nodes representing NULLs correctly. This has
been broken since forever, but was not noticed because people seldom lookat raw parse trees. AFAIK, no impact on users except that debug_print_parsemight fail; but patch it all the way back anyway. Per report from Jeff Ross.
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‎src/backend/nodes/outfuncs.c

Lines changed: 6 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@
55
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
66
* Portions Copyright (c) 1994, Regents of the University of California
77
*
8-
*$Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.176 2002/10/1422:14:34 tgl Exp $
8+
*$Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.176.2.1 2007/07/17 01:22:25 tgl Exp $
99
*
1010
* NOTES
1111
* Every (plan) node in POSTGRES has an associated "out" routine which
@@ -1320,6 +1320,10 @@ _outValue(StringInfo str, Value *value)
13201320
/* internal representation already has leading 'b' */
13211321
appendStringInfo(str," %s ",value->val.str);
13221322
break;
1323+
caseT_Null:
1324+
/* this is seen only within A_Const, not in transformed trees */
1325+
appendStringInfo(str," NULL ");
1326+
break;
13231327
default:
13241328
elog(WARNING,"_outValue: don't know how to print type %d ",
13251329
value->type);
@@ -1367,7 +1371,7 @@ _outParamRef(StringInfo str, ParamRef *node)
13671371
staticvoid
13681372
_outAConst(StringInfostr,A_Const*node)
13691373
{
1370-
appendStringInfo(str,"CONST ");
1374+
appendStringInfo(str," A_CONST :val ");
13711375
_outValue(str,&(node->val));
13721376
appendStringInfo(str," :typename ");
13731377
_outNode(str,node->typename);

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