1install plugin example soname 'ha_example';
2create table t1 (a int) engine=example;
3select 1;
41
51
6uninstall plugin example;
7flush tables;
8select count(*) from information_schema.plugins where plugin_name='example';
9count(*)
100
11truncate table t1;
12ERROR 42000: Unknown storage engine 'EXAMPLE'
13drop table t1;
14