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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;
drop table if exists test.no_index_tab;
update performance_schema.setup_consumers set enabled='YES';
insert into marker set a = 1;
create table test.no_index_tab
( a varchar(255) not null, b int not null) engine = MyISAM
PARTITION BY KEY (b) PARTITIONS 2;
insert into marker set a = 1;
show create table test.no_index_tab;
Table Create Table
no_index_tab CREATE TABLE `no_index_tab` (
`a` varchar(255) NOT NULL,
`b` int(11) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
PARTITION BY KEY (`b`)
PARTITIONS 2
insert into marker set a = 1;
insert into test.no_index_tab set a = 'foo', b = 1;
insert into marker set a = 1;
insert into test.no_index_tab set a = 'foo', b = 2;
insert into marker set a = 1;
insert into test.no_index_tab set a = 'foo', b = 3;
insert into marker set a = 1;
select * from test.no_index_tab;
a b
foo 1
foo 3
foo 2
insert into marker set a = 1;
update test.no_index_tab set a = 'bar';
insert into marker set a = 1;
select * from test.no_index_tab limit 2;
a b
bar 1
bar 3
insert into marker set a = 1;
delete from test.no_index_tab where b = 3;
insert into marker set a = 1;
select * from test.no_index_tab;
a b
bar 1
bar 2
insert into marker set a = 1;
optimize table test.no_index_tab;
Table Op Msg_type Msg_text
test.no_index_tab optimize status OK
insert into marker set a = 1;
select * from test.no_index_tab;
a b
bar 1
bar 2
insert into marker set a = 1;
truncate table test.no_index_tab;
insert into marker set a = 1;
drop table test.no_index_tab;
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")
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 handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab update NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab update NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab update NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab delete NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test no_index_tab fetch NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
wait/io/table/sql/handler handler.cc: TABLE test marker insert NULL
show status where Variable_name like 'performance_schema_%' and
Variable_name not like 'performance_schema_%_classes_lost';
Variable_name Value
Performance_schema_accounts_lost 0
Performance_schema_cond_instances_lost 0
Performance_schema_digest_lost 0
Performance_schema_file_handles_lost 0
Performance_schema_file_instances_lost 0
Performance_schema_hosts_lost 0
Performance_schema_locker_lost 0
Performance_schema_mutex_instances_lost 0
Performance_schema_rwlock_instances_lost 0
Performance_schema_session_connect_attrs_lost 0
Performance_schema_socket_instances_lost 0
Performance_schema_table_handles_lost 0
Performance_schema_table_instances_lost 0
Performance_schema_thread_instances_lost 0
Performance_schema_users_lost 0
truncate performance_schema.events_waits_history_long;
flush status;
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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