mariadb/mysql-test/t/multi_update.test

#
# Only run the test if we are using --big-test, because this test takes a
# long time
#
-- require r/big_test.require
eval select $BIG_TEST as using_big_test;

drop table if exists t1,t2,t3;
create table t1(id1 int not null auto_increment primary key, t char(12));
create table t2(id2 int not null, t char(12), index(id2));
create table t3(id3 int not null, t char(12), index(id3));
let $1 = 10000;
while ($1)
 {
  let $2 = 5;
  eval insert into t1(t) values ('$1'); 
  while ($2)
   {
     eval insert into t2(id2,t) values ($1,'$2'); 
     let $3 = 10;
     while ($3)
     {
       eval insert into t3(id3,t) values ($1,'$2'); 
       dec $3;
     }
     dec $2; 
   }
  dec $1;
 }

delete t1.*, t2.*, t3.*  from t1,t2,t3 where t1.id1 = t2.id2 and t2.id2 = t3.id3  and t1.id1 > 9500;

check table t1, t2, t3;

select count(*) from t1 where id1 > 9500;
select count(*) from t2 where id2 > 9500;
select count(*) from t3 where id3 > 9500;

delete t1, t2, t3  from t1,t2,t3 where t1.id1 = t2.id2 and t2.id2 = t3.id3  and t1.id1 > 500;
select count(*) from t1 where id1 > 500;
select count(*) from t2 where id2 > 500;
select count(*) from t3 where id3 > 500;

delete t1, t2, t3  from t1,t2,t3 where t1.id1 = t2.id2 and t2.id2 = t3.id3  and t1.id1 > 0;

# These queries will force a scan of the table
select count(*) from t1 where id1;
select count(*) from t2 where id2;
select count(*) from t3 where id3;

drop table t1,t2,t3;