Merge ua141d10.elisa.omakaista.fi:/home/my/bk/mysql-4.1

into  ua141d10.elisa.omakaista.fi:/home/my/bk/mysql-5.0-tmp

sql/sql_select.cc

@@ -825,6 +825,7 @@ JOIN::optimize()
   {
     order=0;					// The output has only one row
     simple_order=1;
+    select_distinct= 0;                       // No need in distinct for 1 row
   }
 
   calc_group_buffer(this, group_list);