diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/parser/analyze.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/src/backend/parser/analyze.c b/src/backend/parser/analyze.c index fb3415ba03c..f198ceb813f 100644 --- a/src/backend/parser/analyze.c +++ b/src/backend/parser/analyze.c @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.261 2003/02/09 06:56:28 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.262 2003/02/11 04:13:06 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1786,6 +1786,11 @@ transformSetOperationStmt(ParseState *pstate, SelectStmt *stmt) * leftmost select and common datatypes of topmost set operation. Also * make lists of the dummy vars and their names for use in parsing * ORDER BY. + * + * Note: we use leftmostRTI as the varno of the dummy variables. + * It shouldn't matter too much which RT index they have, as long + * as they have one that corresponds to a real RT entry; else funny + * things may happen when the tree is mashed by rule rewriting. */ qry->targetList = NIL; targetvars = NIL; @@ -1804,7 +1809,7 @@ transformSetOperationStmt(ParseState *pstate, SelectStmt *stmt) -1, colName, false); - expr = (Expr *) makeVar(1, + expr = (Expr *) makeVar(leftmostRTI, leftResdom->resno, colType, -1, @@ -1871,7 +1876,7 @@ transformSetOperationStmt(ParseState *pstate, SelectStmt *stmt) NULL, true); jrtr = makeNode(RangeTblRef); - jrtr->rtindex = 1; + jrtr->rtindex = 1; /* only entry in dummy rtable */ sv_rtable = pstate->p_rtable; pstate->p_rtable = makeList1(jrte); |