improved rename:DELETE test

Author: Shlomi Noach

localtests/rename/create.sql

@@ -21,5 +21,6 @@ begin
   insert into gh_ost_test values (null, 17, 23);
   set @last_insert_id := last_insert_id();
   update gh_ost_test set c1=c1+@last_insert_id, c2=c2+@last_insert_id where id = @last_insert_id order by id desc limit 1;
-  delete from gh_ost_test where id in (1,2);
+  delete from gh_ost_test where id=1;
+  delete from gh_ost_test where c1=11; -- id=2
 end ;;