Merge mysql.com:/windows/Linux_space/MySQL/mysql-5.0-ndb

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.1-new-ndb

mysql-test/t/ndb_read_multi_range.test

@@ -315,5 +315,26 @@ partition by key(a);
 insert into t2 values (1,1), (10,10);
 
 select * from t2 where a in (1,10) order by a;
-
 drop table t1, t2;
+
+#bug#30337
+
+create table t1 (id int primary key) engine ndb;
+insert into t1 values (1), (2), (3);
+
+create table t2 (id int primary key) engine ndb;
+insert into t2 select id from t1;
+
+delimiter |;
+create trigger kaboom after delete on t1
+for each row begin
+  delete from t2 where id=old.id;
+end|
+delimiter ;|
+
+select * from t1 order by id;
+delete from t1 where id in (1,2);
+select * from t2 order by id;
+
+drop trigger kaboom;
+drop table t1;

sql/ha_ndbcluster.cc

@@ -8520,7 +8520,8 @@ ha_ndbcluster::read_multi_range_first(KEY_MULTI_RANGE **found_range_p,
   if (uses_blob_value() ||
       (cur_index_type ==  UNIQUE_INDEX &&
        has_null_in_unique_index(active_index) &&
-       null_value_index_search(ranges, ranges+range_count, buffer)))
+       null_value_index_search(ranges, ranges+range_count, buffer))
+      || m_delete_cannot_batch || m_update_cannot_batch)
   {
     m_disable_multi_read= TRUE;
     DBUG_RETURN(handler::read_multi_range_first(found_range_p,