In '(a,b,...) Op [ANY|ALL] (SubSelect)' Op is restricted to

'=' and '<>'.

diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c
index 62a53976a5bc4db981a2c2dde11fa0a9c87e734a..f4cf3247628a4d203714277d26403ff488e0f33a 100644 (file)
--- a/src/backend/parser/parse_expr.c
+++ b/src/backend/parser/parse_expr.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.22 1998/02/26 04:33:30 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/parser/parse_expr.c,v 1.23 1998/02/27 16:07:02 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -266,7 +266,11 @@ transformExpr(ParseState *pstate, Node *expr, int precedence)
                                        if (length(left_expr) !=
                                                length(right_expr))
                                                elog(ERROR, "parser: Subselect has too many or too few fields.");
-
+                                       
+                                       if (length(left_expr) > 1 && 
+                                               strcmp (op, "=") != 0 && strcmp (op, "<>") != 0)
+                                               elog(ERROR, "parser: '%s' is not relational operator", op);
+                                       
                                        sublink->oper = NIL;
                                        foreach(elist, left_expr)
                                        {