database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-09 22:41:56 +03:00
Code Activity

Rewriter and planner should use only resno, not resname, to identify

Browse Source 
target columns in INSERT and UPDATE targetlists.  Don't rely on resname
to be accurate in ruleutils, either.  This fixes bug reported by
Donald Fraser, in which renaming a column referenced in a rule did not
work very well.
This commit is contained in:
Tom Lane
2003-08-11 23:04:50 +00:00
parent 730b3a1502
commit 302f1a86dc
15 changed files with 144 additions and 115 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/backend/optimizer/prep/preptlist.c
View File

@ -15,7 +15,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.64 2003/08/04 02:40:01 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/preptlist.c,v 1.65 2003/08/11 23:04:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -150,8 +150,6 @@ expand_targetlist(List *tlist, int command_type,
if (!resdom->resjunk && resdom->resno == attrno)
{
Assert(strcmp(resdom->resname,
NameStr(att_tup->attname)) == 0);
new_tle = old_tle;
tlist = lnext(tlist);
}

21
src/backend/optimizer/prep/prepunion.c
View File

@ -14,7 +14,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.103 2003/08/04 02:40:01 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/prep/prepunion.c,v 1.104 2003/08/11 23:04:49 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -64,7 +64,7 @@ static bool tlist_same_datatypes(List *tlist, List *colTypes, bool junkOK);
static Node *adjust_inherited_attrs_mutator(Node *node,
adjust_inherited_attrs_context *context);
static Relids adjust_relid_set(Relids relids, Index oldrelid, Index newrelid);
static List *adjust_inherited_tlist(List *tlist, Oid new_relid);
static List *adjust_inherited_tlist(List *tlist, Oid old_relid, Oid new_relid);
/*
@ -787,6 +787,7 @@ adjust_inherited_attrs(Node *node,
if (newnode->commandType == CMD_UPDATE)
newnode->targetList =
adjust_inherited_tlist(newnode->targetList,
old_relid,
new_relid);
}
return (Node *) newnode;
@ -812,9 +813,10 @@ adjust_inherited_attrs_mutator(Node *node,
var->varnoold = context->new_rt_index;
if (var->varattno > 0)
{
char *attname = get_attname(context->old_relid,
var->varattno);
char *attname;
attname = get_relid_attribute_name(context->old_relid,
var->varattno);
var->varattno = get_attnum(context->new_relid, attname);
if (var->varattno == InvalidAttrNumber)
elog(ERROR, "attribute \"%s\" of relation \"%s\" does not exist",
@ -976,7 +978,7 @@ adjust_relid_set(Relids relids, Index oldrelid, Index newrelid)
* Note that this is not needed for INSERT because INSERT isn't inheritable.
*/
static List *
adjust_inherited_tlist(List *tlist, Oid new_relid)
adjust_inherited_tlist(List *tlist, Oid old_relid, Oid new_relid)
{
bool changed_it = false;
List *tl;
@ -989,21 +991,26 @@ adjust_inherited_tlist(List *tlist, Oid new_relid)
{
TargetEntry *tle = (TargetEntry *) lfirst(tl);
Resdom *resdom = tle->resdom;
char *attname;
if (resdom->resjunk)
continue; /* ignore junk items */
attrno = get_attnum(new_relid, resdom->resname);
attname = get_relid_attribute_name(old_relid, resdom->resno);
attrno = get_attnum(new_relid, attname);
if (attrno == InvalidAttrNumber)
elog(ERROR, "attribute \"%s\" of relation \"%s\" does not exist",
resdom->resname, get_rel_name(new_relid));
attname, get_rel_name(new_relid));
if (resdom->resno != attrno)
{
resdom = (Resdom *) copyObject((Node *) resdom);
resdom->resno = attrno;
resdom->resname = attname;
tle->resdom = resdom;
changed_it = true;
}
else
pfree(attname);
}
/*