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drop schema if exists test1;
drop table if exists test.t1;
create schema test1;
create table test.t1 (col1 bigint, col2 varchar(30)) engine = myisam;
insert into test.t1 values(1,'One');
create table test1.t2 like test.t1;
show create table test.t1;
Table Create Table
t1 CREATE TABLE `t1` (
`col1` bigint(20) DEFAULT NULL,
`col2` varchar(30) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
show create table test1.t2;
Table Create Table
t2 CREATE TABLE `t2` (
`col1` bigint(20) DEFAULT NULL,
`col2` varchar(30) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table if exists test.marker;
create table test.marker(a int);
update performance_schema.setup_consumers set enabled='NO';
update performance_schema.setup_instruments set enabled='NO';
update performance_schema.setup_instruments set enabled='YES'
where name like "wait/io/table/%";
truncate table performance_schema.events_waits_history_long;
flush status;
flush tables;
update performance_schema.setup_consumers set enabled = 'YES';
insert into test1.t2 select * from test.t1;
insert into marker set a = 1;
select * from test.t1 natural join test1.t2;
col1 col2
1 One
insert into marker set a = 1;
select * from test.t1 where col2 = (select col2 from test1.t2 where test.t1.col1 = test1.t2.col1);
col1 col2
1 One
insert into marker set a = 1;
update test.t1 AS a natural join test1.t2 AS b SET a.col2 = 'updated' , b.col2 = 'updated';
insert into marker set a = 1;
delete from test.t1, test1.t2 using test.t1 inner join test1.t2
where test.t1.col1 = test1.t2.col1;
update performance_schema.setup_consumers set enabled='NO';
select event_name,
left(source, locate(":", source)) as short_source,
object_type, object_schema,
if (locate("#sql-", object_name), "#sql-XXXX", object_name)
as pretty_name,
operation, number_of_bytes
from performance_schema.events_waits_history_long
where event_name like 'wait/io/table/%'
and object_schema in ('test','test1')
order by thread_id, event_id;
event_name short_source object_type object_schema pretty_name operation number_of_bytes
wait/io/table/sql/handler TABLE test t1 fetch 1
wait/io/table/sql/handler TABLE test1 t2 insert 1
wait/io/table/sql/handler TABLE test marker insert 1
wait/io/table/sql/handler TABLE test t1 fetch 1
wait/io/table/sql/handler TABLE test1 t2 fetch 1
wait/io/table/sql/handler TABLE test marker insert 1
wait/io/table/sql/handler TABLE test t1 fetch 1
wait/io/table/sql/handler TABLE test1 t2 fetch 1
wait/io/table/sql/handler TABLE test marker insert 1
wait/io/table/sql/handler TABLE test t1 fetch 1
wait/io/table/sql/handler TABLE test1 t2 fetch 1
wait/io/table/sql/handler TABLE test t1 update 1
wait/io/table/sql/handler TABLE test1 t2 fetch 1
wait/io/table/sql/handler TABLE test1 t2 update 1
wait/io/table/sql/handler TABLE test marker insert 1
wait/io/table/sql/handler TABLE test t1 fetch 1
wait/io/table/sql/handler TABLE test1 t2 fetch 1
wait/io/table/sql/handler TABLE test t1 delete 1
wait/io/table/sql/handler TABLE test1 t2 fetch 1
wait/io/table/sql/handler TABLE test1 t2 delete 1
show global status like 'performance_schema_%';
Variable_name Value
Performance_schema_accounts_lost 0
Performance_schema_cond_classes_lost 0
Performance_schema_cond_instances_lost 0
Performance_schema_digest_lost 0
Performance_schema_file_classes_lost 0
Performance_schema_file_handles_lost 0
Performance_schema_file_instances_lost 0
Performance_schema_hosts_lost 0
Performance_schema_index_stat_lost 0
Performance_schema_locker_lost 0
Performance_schema_memory_classes_lost 0
Performance_schema_metadata_lock_lost 0
Performance_schema_mutex_classes_lost 0
Performance_schema_mutex_instances_lost 0
Performance_schema_nested_statement_lost 0
Performance_schema_prepared_statements_lost 0
Performance_schema_program_lost 0
Performance_schema_rwlock_classes_lost 0
Performance_schema_rwlock_instances_lost 0
Performance_schema_session_connect_attrs_lost 0
Performance_schema_socket_classes_lost 0
Performance_schema_socket_instances_lost 0
Performance_schema_stage_classes_lost 0
Performance_schema_statement_classes_lost 0
Performance_schema_table_handles_lost 0
Performance_schema_table_instances_lost 0
Performance_schema_table_lock_stat_lost 0
Performance_schema_thread_classes_lost 0
Performance_schema_thread_instances_lost 0
Performance_schema_users_lost 0
truncate performance_schema.events_waits_history_long;
flush status;
drop table test.t1;
drop schema test1;
update performance_schema.setup_consumers set enabled='NO';
truncate performance_schema.events_waits_history_long;
drop table test.marker;
flush status;
update performance_schema.setup_instruments set enabled='YES';
update performance_schema.setup_consumers set enabled='YES';
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