Remove no-longer-needed restriction against referencing system

attributes in a FieldSelect node --- all the places that manipulate
these work just fine with system attribute numbers.  OK, it's a new
feature, so shoot me ...

diff --git a/src/backend/parser/parse_func.c b/src/backend/parser/parse_func.c
index 0e1b782fd97d65ec128198392b41e0d4621b29aa..a7be856c1e7697de431a7be0f04ed5e4a287fc8c 100644 (file)
--- a/src/backend/parser/parse_func.c
+++ b/src/backend/parser/parse_func.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.96 2000/12/27 23:59:11 tgl Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/parser/parse_func.c,v 1.97 2001/01/23 02:32:26 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1479,11 +1479,6 @@ setup_field_select(Node *input, char *attname, Oid relid)
 
        attno = get_attnum(relid, attname);
 
-       /* XXX Is there still a reason for this restriction? */
-       if (attno < 0)
-               elog(ERROR, "Cannot reference attribute '%s'"
-                        " of tuple params/return values for functions", attname);
-
        fselect->arg = input;
        fselect->fieldnum = attno;
        fselect->resulttype = get_atttype(relid, attno);