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Fix outfuncs.c to dump A_Const nodes representing NULLs correctly. This has

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been broken since forever, but was not noticed because people seldom look
at raw parse trees.  AFAIK, no impact on users except that debug_print_parse
might fail; but patch it all the way back anyway.  Per report from Jeff Ross.
This commit is contained in:
Tom Lane 2007-07-17 01:22:18 +00:00
parent 62ca8db433
commit da15b2852e
1 changed files with 7 additions and 2 deletions
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9
src/backend/nodes/outfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.218 2003/08/17 23:43:26 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/nodes/outfuncs.c,v 1.218.2.1 2007/07/17 01:22:18 tgl Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
@ -1407,6 +1407,10 @@ _outValue(StringInfo str, Value *value)
/* internal representation already has leading 'b' */
appendStringInfo(str, "%s", value->val.str);
break;
case T_Null:
/* this is seen only within A_Const, not in transformed trees */
appendStringInfoString(str, "NULL");
break;
default:
elog(ERROR, "unrecognized node type: %d", (int) value->type);
break;
@ -1435,8 +1439,9 @@ _outParamRef(StringInfo str, ParamRef *node)
static void
_outAConst(StringInfo str, A_Const *node)
{
WRITE_NODE_TYPE("CONST ");
WRITE_NODE_TYPE("A_CONST");
appendStringInfo(str, " :val ");
_outValue(str, &(node->val));
WRITE_NODE_FIELD(typename);
}