Bug fix for multi-table delete with test case and manual entry

Docs/manual.texi

@@ -49343,6 +49343,8 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
 
 @itemize @bullet
 @item
+Fixed bug in multi-table @code{DELETE} when optimiser uses only indices
+@item
 Fixed that @code{ALTER TABLE table_name RENAME new_table_name} is as fast
 as @code{RENAME TABLE}.
 @item

mysql-test/r/multi_update.result

@@ -66,3 +66,7 @@ select count(*) from t3 where id3;
 count(*)
 0
 drop table t1,t2,t3;
+create table t1(id1 int not null auto_increment primary key, t varchar(100));
+create table t2(id2 int not null, t varchar(100), index(id2));
+delete t1, t2  from t2,t1 where t1.id1 = t2.id2 and t1.id1 > 100;
+drop table t1,t2;

mysql-test/t/multi_update.test

@@ -62,3 +62,21 @@ select count(*) from t2 where id2;
 select count(*) from t3 where id3;
 
 drop table t1,t2,t3;
+create table t1(id1 int not null auto_increment primary key, t varchar(100));
+create table t2(id2 int not null, t varchar(100), index(id2));
+disable_query_log;
+let $1 = 1000;
+while ($1)
+ {
+  let $2 = 5;
+  eval insert into t1(t) values ('aaaaaaaaaaaaaaaaaaaa'); 
+  while ($2)
+   {
+     eval insert into t2(id2,t) values ($1,'bbbbbbbbbbbbbbbbb'); 
+     dec $2; 
+   }
+  dec $1;
+ }
+enable_query_log;
+delete t1, t2  from t2,t1 where t1.id1 = t2.id2 and t1.id1 > 100;
+drop table t1,t2;

sql/sql_parse.cc

@@ -1963,11 +1963,6 @@ mysql_execute_command(void)
       (void)add_item_to_list(new Item_field(auxi->db,auxi->real_name,"*"));
     }
     tables->grant.want_privilege=(SELECT_ACL & ~tables->grant.privilege);
-    if (add_item_to_list(new Item_null()))
-    {
-      res= -1;
-      break;
-    }
     thd->proc_info="init";
     if ((res=open_and_lock_tables(thd,tables)))
       break;