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Make rule lister do the right thing with Vars representing whole tuples.

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This commit is contained in:
Tom Lane
2001-04-18 17:04:24 +00:00
parent 4a5905184f
commit 40136f4465
2 changed files with 29 additions and 10 deletions
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8
src/backend/parser/parse_relation.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.53 2001/03/22 03:59:41 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.54 2001/04/18 17:04:24 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -909,6 +909,9 @@ expandNamesVars(ParseState *pstate, List *names, List *vars)
* In particular, it will work on an RTE for a subselect, whereas
* get_attname() only works on real relations.
*
* "*" is returned if the given attnum is InvalidAttrNumber --- this case
* occurs when a Var represents a whole tuple of a relation.
*
* XXX Actually, this is completely bogus, because refnames of RTEs are
* not guaranteed unique, and may not even have scope across the whole
* query. Cleanest fix would be to add refname/attname to Var nodes and
@ -920,6 +923,9 @@ get_rte_attribute_name(RangeTblEntry *rte, AttrNumber attnum)
{
char *attname;
if (attnum == InvalidAttrNumber)
return "*";
/*
* If there is an alias, use it
*/