Allow SELECT NULL as EMPTY_FIELD, Patrick.

diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index 87cbb180a06c720704da84ea0478538d47edc11d..7e74bac41839d0d9b4a504748429a0d833e0418a 100644 (file)
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *   $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.43 1997/09/08 03:19:57 momjian Exp $
+ *   $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 1.44 1997/09/12 22:14:48 momjian Exp $
  *
  * HISTORY
  *   AUTHOR            DATE            MAJOR EVENT
@@ -2740,7 +2740,7 @@ res_target_list2: res_target_list2 ',' res_target_el2
        ;
 
 /* AS is not optional because shift/red conflict with unary ops */
-res_target_el2: a_expr AS ColId
+res_target_el2: a_expr_or_null AS ColId
                {
                    $$ = makeNode(ResTarget);
                    $$->name = $3;