^^&&^^

Edit File: alter_table.test

# Warning: The current test has problematic properties at runtime
# - non debug build ~ 3h
# - debug build     ~ 8h
# - space consumption in minimum 60 GB on disk
#
#   Therefore we skip in case '--big-test' is not assigned.
--source include/big_test.inc
#   Hence we skip on debug builds.
--source include/have_nodebug.inc

#
# Bug#27029 alter table ... enable keys crashes mysqld on large table
#
--disable_warnings
drop table if exists t1;
--enable_warnings

create table `t1` (`c1` tinyint unsigned not null, key `c1` (`c1`))
engine=myisam default charset=utf8;
alter table `t1` disable keys;
insert into t1 values (1),(2),(3),(4);
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1;
insert into t1 select * from t1 limit 2147483647; #Insert 4294967295 rows.
alter table t1 enable keys;
drop table t1;