Fixed incorrect argument handling in SET command if argument is a variable.

diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index aa7413e2bf1a2c953578191a2fedf74ffe7970c3..29435816760b1b0c073c33f69662547adf777ab0 100644 (file)
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.359.2.4 2008/06/04 12:26:14 meskes Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/preproc.y,v 1.359.2.5 2008/08/20 14:07:16 meskes Exp $ */
 
 /* Copyright comment */
 %{
@@ -1243,7 +1243,16 @@ iso_level:   READ UNCOMMITTED    { $$ = make_str("read uncommitted"); }
        ;
 
 var_value: opt_boolean     { $$ = $1; }
-       | AllConst          { $$ = $1; }
+       | AllConst          {   /* we have to check for a variable here because it has to be
+                               replaced with its value on the client side */
+                           if ($1[1] == '$')
+                           {
+                               $$ = make_str("$0");
+                               free($1);
+                           }
+                           else
+                               $$ = $1;
+                       }
        | ColId             { $$ = $1; }
        ;
 
@@ -2358,7 +2367,7 @@ fetch_direction:  NEXT                { $$ = make_str("next"); }
 fetch_count:   IntConst    {
                            if ($1[1] == '$')
                    {
-                       /* a variable here has to be replaced on the client side, thus we have to use '?' here */
+                       /* a variable here has to be replaced on the client side, thus we have to use '$0' here */
                        $$ = make_str("$0");
                        free($1);
                    }