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Code Issues Releases Wiki Activity

Do not assign output columns to junk attributes created from 

GROUP BY or ORDER BY expressions in INSERT ... SELECT.
This commit is contained in:
Tom Lane 1999-05-23 21:42:09 +00:00
parent 505b5185fc
commit 9432b6dd64
1 changed files with 11 additions and 10 deletions
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21
src/backend/parser/parse_target.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_target.c,v 1.38 1999/05/22 04:12:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_target.c,v 1.39 1999/05/23 21:42:09 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -32,16 +32,12 @@
static List *ExpandAllTables(ParseState *pstate);
char *FigureColname(Node *expr, Node *resval);
static char *FigureColname(Node *expr, Node *resval);
static Node *SizeTargetExpr(ParseState *pstate,
Node *expr,
Oid attrtype,
int32 attrtypmod);
static TargetEntry *
MakeTargetEntryCase(ParseState *pstate,
ResTarget *res);
/* MakeTargetEntryIdent()
* Transforms an Ident Node to a Target Entry
@ -66,8 +62,13 @@ MakeTargetEntryIdent(ParseState *pstate,
Oid attrtype_target;
TargetEntry *tent = makeNode(TargetEntry);
if (pstate->p_is_insert)
if (pstate->p_is_insert && !resjunk)
{
/* Assign column name of destination column to the new TLE.
* XXX this is probably WRONG in INSERT ... SELECT case,
* since handling of GROUP BY and so forth probably should use
* the source table's names not the destination's names.
*/
if (pstate->p_insert_columns != NIL)
{
Ident *id = lfirst(pstate->p_insert_columns);
@ -79,7 +80,7 @@ MakeTargetEntryIdent(ParseState *pstate,
elog(ERROR, "INSERT has more expressions than target columns");
}
if (pstate->p_is_insert || pstate->p_is_update)
if ((pstate->p_is_insert || pstate->p_is_update) && !resjunk)
{
Oid attrtype_id;
int resdomno_id,
@ -208,7 +209,7 @@ MakeTargetEntryExpr(ParseState *pstate,
type_mod = -1;
/* Process target columns that will be receiving results */
if (pstate->p_is_insert || pstate->p_is_update)
if ((pstate->p_is_insert || pstate->p_is_update) && !resjunk)
{
/*
@ -870,7 +871,7 @@ ExpandAllTables(ParseState *pstate)
* list, we have to guess.
*
*/
char *
static char *
FigureColname(Node *expr, Node *resval)
{
switch (nodeTag(expr))