Fix a *different* problem with whole-row Vars afflicting 8.0 branch.

This is a back-port of a fix made to markTargetListOrigin() on 2005-04-25.

diff --git a/src/backend/parser/parse_target.c b/src/backend/parser/parse_target.c
index ebba3e868f1142a2092ec56f930883b30991bf03..a6b1edbe48dd7e3bcf7f272442661d708ae97b2c 100644 (file)
--- a/src/backend/parser/parse_target.c
+++ b/src/backend/parser/parse_target.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/parser/parse_target.c,v 1.129 2005/01/13 17:19:09 tgl Exp $
+ *   $PostgreSQL: pgsql/src/backend/parser/parse_target.c,v 1.129.4.1 2005/12/14 16:30:20 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -209,8 +209,9 @@ markTargetListOrigin(ParseState *pstate, Resdom *res, Var *var, int levelsup)
            res->resorigcol = attnum;
            break;
        case RTE_SUBQUERY:
+           /* Subselect-in-FROM: copy up from the subselect */
+           if (attnum != InvalidAttrNumber)
            {
-               /* Subselect-in-FROM: copy up from the subselect */
                TargetEntry *te = get_tle_by_resno(rte->subquery->targetList,
                                                   attnum);
 
@@ -222,8 +223,9 @@ markTargetListOrigin(ParseState *pstate, Resdom *res, Var *var, int levelsup)
            }
            break;
        case RTE_JOIN:
+           /* Join RTE --- recursively inspect the alias variable */
+           if (attnum != InvalidAttrNumber)
            {
-               /* Join RTE --- recursively inspect the alias variable */
                Var        *aliasvar;
 
                Assert(attnum > 0 && attnum <= list_length(rte->joinaliasvars));