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Allow select oid,* from table. Allow * anywhere in target list.

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This commit is contained in:
Bruce Momjian
1996-11-29 15:56:18 +00:00
parent a962c6128f
commit a3d773a693
2 changed files with 23 additions and 21 deletions
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17
src/backend/parser/analyze.c
View File

@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.16 1996/11/26 03:17:45 bryanh Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.17 1996/11/29 15:56:16 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -1127,10 +1127,14 @@ transformTargetList(ParseState *pstate, List *targetlist)
* (eg. SELECT * FROM emp) * (eg. SELECT * FROM emp)
*/ */
if (att->relname!=NULL && !strcmp(att->relname, "*")) { if (att->relname!=NULL && !strcmp(att->relname, "*")) {
if(lnext(targetlist)!=NULL) if (tail_p_target == NIL)
elog(WARN, "cannot expand target list *, ..."); p_target = tail_p_target = expandAllTables(pstate);
p_target = expandAllTables(pstate); else
lnext(tail_p_target) = expandAllTables(pstate);
while(lnext(tail_p_target)!=NIL)
/* make sure we point to the last target entry */
tail_p_target = lnext(tail_p_target);
/* /*
* skip rest of while loop * skip rest of while loop
*/ */
@ -1147,14 +1151,13 @@ transformTargetList(ParseState *pstate, List *targetlist)
/* tail_p_target is the target list we're building in the while /* tail_p_target is the target list we're building in the while
* loop. Make sure we fix it after appending more nodes. * loop. Make sure we fix it after appending more nodes.
*/ */
if (tail_p_target == NIL) { if (tail_p_target == NIL)
p_target = tail_p_target = expandAll(pstate, att->relname, p_target = tail_p_target = expandAll(pstate, att->relname,
att->relname, &pstate->p_last_resno); att->relname, &pstate->p_last_resno);
} else { else
lnext(tail_p_target) = lnext(tail_p_target) =
expandAll(pstate, att->relname, att->relname, expandAll(pstate, att->relname, att->relname,
&pstate->p_last_resno); &pstate->p_last_resno);
}
while(lnext(tail_p_target)!=NIL) while(lnext(tail_p_target)!=NIL)
/* make sure we point to the last target entry */ /* make sure we point to the last target entry */
tail_p_target = lnext(tail_p_target); tail_p_target = lnext(tail_p_target);

27
src/backend/parser/gram.y
View File

@ -10,7 +10,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.18 1996/11/28 05:46:08 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.19 1996/11/29 15:56:18 momjian Exp $
* *
* HISTORY * HISTORY
* AUTHOR DATE MAJOR EVENT * AUTHOR DATE MAJOR EVENT
@ -1935,19 +1935,6 @@ res_target_list2:
{ $$ = lappend($1, $3); } { $$ = lappend($1, $3); }
| res_target_el2 | res_target_el2
{ $$ = lcons($1, NIL); } { $$ = lcons($1, NIL); }
| '*'
{
ResTarget *rt = makeNode(ResTarget);
Attr *att = makeNode(Attr);
att->relname = "*";
att->paramNo = NULL;
att->attrs = NULL;
att->indirection = NIL;
rt->name = NULL;
rt->indirection = NULL;
rt->val = (Node *)att;
$$ = lcons(rt, NIL);
}
; ;
/* AS is not optional because shift/red conflict with unary ops */ /* AS is not optional because shift/red conflict with unary ops */
@ -1977,6 +1964,18 @@ res_target_el2: a_expr AS Id
$$->indirection = NULL; $$->indirection = NULL;
$$->val = (Node *)att; $$->val = (Node *)att;
} }
| '*'
{
Attr *att = makeNode(Attr);
att->relname = "*";
att->paramNo = NULL;
att->attrs = NULL;
att->indirection = NIL;
$$ = makeNode(ResTarget);
$$->name = NULL;
$$->indirection = NULL;
$$->val = (Node *)att;
}
; ;
opt_id: Id { $$ = $1; } opt_id: Id { $$ = $1; }