--disable_warnings
drop database if exists bug25921;
create database bug25921;
--enable_warnings


create table t1(a integer, b integer, c integer) engine=myisam;

--disable_query_log
insert into t1 values (rand()*1000,rand()*1000,rand()*1000);
let $1=19;
while ($1)
{
 eval insert into t1 select rand()*1000,rand()*1000,rand()*1000 from t1;
 dec $1;
}
--enable_query_log

create table t2 like t1;
alter table t2 engine=merge union=(t1);

--send select sum(a), sum(b), sum(c) from t2

--connect(conn2,localhost, root,,)
insert into test values(1,2,3);

connection default;
--reap

--disable_warnings
drop database bug25921;
--enable_warnings