Merge sinisa@bk-internal.mysql.com:/home/bk/mysql-4.0

into sinisa.nasamreza.org:/mnt/work/mysql-4.0

mysql-test/r/union.result

@@ -422,6 +422,8 @@ Wrong usage/placement of 'SQL_CALC_FOUND_ROWS'
 create temporary table t1 select a from t1 union select a from t2;
 create table t1 select a from t1 union select a from t2;
 INSERT TABLE 't1' isn't allowed in FROM table list
+select a from t1 union select a from t2 order by t2.a;
+Unknown column 't2.a' in 'ORDER BY'
 drop table t1,t2;
 select length(version()) > 1 as `*` UNION select 2;
 *

mysql-test/t/union.test

@@ -226,6 +226,8 @@ SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a desc LIMIT 1;
 create temporary table t1 select a from t1 union select a from t2;
 --error 1093
 create table t1 select a from t1 union select a from t2;
+--error 1054
+select a from t1 union select a from t2 order by t2.a;
 drop table t1,t2;
 
 #

mysql-test/t/update.test

@@ -119,7 +119,6 @@ insert into t1 (F1,F2,F3,cnt,groupid) values ('0','0','0',1,6),
 ('0','1','2',1,5), ('0','2','0',1,3), ('1','0','1',1,2),
 ('1','2','1',1,1), ('1','2','2',1,1), ('2','0','1',2,4),
 ('2','2','0',1,7);
-
 delete from t1 using t1 m1,t1 m2 where m1.groupid=m2.groupid and (m1.cnt < m2.cnt or m1.cnt=m2.cnt and m1.F3>m2.F3);
 select * from t1;
 drop table t1;

sql/sql_union.cc

@@ -100,6 +100,7 @@ int mysql_union(THD *thd, LEX *lex,select_result *result)
   else
   {
     Item *item;
+    ORDER *orr;
     List_iterator<Item> it(lex->select_lex.item_list);
     TABLE_LIST *first_table= (TABLE_LIST*) lex->select_lex.table_list.first;
 
@@ -110,6 +111,15 @@ int mysql_union(THD *thd, LEX *lex,select_result *result)
     if (setup_tables(first_table) ||
 	setup_fields(thd,first_table,item_list,0,0,1))
       DBUG_RETURN(-1);
+    for (orr=order;orr;orr=orr->next)
+    {
+      item=*orr->item;
+      if (((item->type() == Item::FIELD_ITEM) && ((class Item_field*)item)->table_name))
+      {
+	my_error(ER_BAD_FIELD_ERROR,MYF(0),item->full_name(),"ORDER BY");
+	DBUG_RETURN(-1);
+      }
+    }
   }
 
   bzero((char*) &tmp_table_param,sizeof(tmp_table_param));