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116 lines
4.7 KiB
Text
116 lines
4.7 KiB
Text
drop schema if exists test1;
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drop table if exists test.t1;
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create schema test1;
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create table test.t1 (col1 bigint, col2 varchar(30)) engine = myisam;
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insert into test.t1 values(1,'One');
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create table test1.t2 like test.t1;
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show create table test.t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`col1` bigint(20) DEFAULT NULL,
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`col2` varchar(30) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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show create table test1.t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`col1` bigint(20) DEFAULT NULL,
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`col2` varchar(30) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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drop table if exists test.marker;
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create table test.marker(a int);
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update performance_schema.setup_consumers set enabled='NO';
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update performance_schema.setup_instruments set enabled='NO';
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update performance_schema.setup_instruments set enabled='YES'
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where name like "wait/io/table/%";
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truncate table performance_schema.events_waits_history_long;
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flush global status;
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flush tables;
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update performance_schema.setup_consumers set enabled = 'YES';
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insert into test1.t2 select * from test.t1;
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insert into marker set a = 1;
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select * from test.t1 natural join test1.t2;
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col1 col2
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1 One
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insert into marker set a = 1;
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select * from test.t1 where col2 = (select col2 from test1.t2 where test.t1.col1 = test1.t2.col1);
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col1 col2
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1 One
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insert into marker set a = 1;
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update test.t1 AS a natural join test1.t2 AS b SET a.col2 = 'updated' , b.col2 = 'updated';
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insert into marker set a = 1;
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delete from test.t1, test1.t2 using test.t1 inner join test1.t2
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where test.t1.col1 = test1.t2.col1;
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update performance_schema.setup_consumers set enabled='NO';
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select event_name,
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left(source, locate(":", source)) as short_source,
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object_type, object_schema,
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if (locate("#sql-", object_name), "#sql-XXXX", object_name)
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as pretty_name,
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operation, number_of_bytes
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from performance_schema.events_waits_history_long
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where event_name like 'wait/io/table/%'
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and object_schema in ('test','test1')
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order by thread_id, event_id;
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event_name short_source object_type object_schema pretty_name operation number_of_bytes
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wait/io/table/sql/handler TABLE test t1 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 insert 1
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wait/io/table/sql/handler TABLE test marker insert 1
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wait/io/table/sql/handler TABLE test t1 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 fetch 1
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wait/io/table/sql/handler TABLE test marker insert 1
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wait/io/table/sql/handler TABLE test t1 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 fetch 1
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wait/io/table/sql/handler TABLE test marker insert 1
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wait/io/table/sql/handler TABLE test t1 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 fetch 1
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wait/io/table/sql/handler TABLE test t1 update 1
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wait/io/table/sql/handler TABLE test1 t2 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 update 1
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wait/io/table/sql/handler TABLE test marker insert 1
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wait/io/table/sql/handler TABLE test t1 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 fetch 1
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wait/io/table/sql/handler TABLE test t1 delete 1
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wait/io/table/sql/handler TABLE test1 t2 fetch 1
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wait/io/table/sql/handler TABLE test1 t2 delete 1
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show global status like 'performance_schema_%';
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Variable_name Value
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Performance_schema_accounts_lost 0
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Performance_schema_cond_classes_lost 0
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Performance_schema_cond_instances_lost 0
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Performance_schema_digest_lost 0
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Performance_schema_file_classes_lost 0
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Performance_schema_file_handles_lost 0
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Performance_schema_file_instances_lost 0
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Performance_schema_hosts_lost 0
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Performance_schema_index_stat_lost 0
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Performance_schema_locker_lost 0
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Performance_schema_memory_classes_lost 0
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Performance_schema_metadata_lock_lost 0
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Performance_schema_mutex_classes_lost 0
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Performance_schema_mutex_instances_lost 0
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Performance_schema_nested_statement_lost 0
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Performance_schema_prepared_statements_lost 0
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Performance_schema_program_lost 0
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Performance_schema_rwlock_classes_lost 0
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Performance_schema_rwlock_instances_lost 0
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Performance_schema_session_connect_attrs_lost 0
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Performance_schema_socket_classes_lost 0
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Performance_schema_socket_instances_lost 0
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Performance_schema_stage_classes_lost 0
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Performance_schema_statement_classes_lost 0
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Performance_schema_table_handles_lost 0
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Performance_schema_table_instances_lost 0
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Performance_schema_table_lock_stat_lost 0
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Performance_schema_thread_classes_lost 0
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Performance_schema_thread_instances_lost 0
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Performance_schema_users_lost 0
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truncate performance_schema.events_waits_history_long;
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flush global status;
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drop table test.t1;
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drop schema test1;
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update performance_schema.setup_consumers set enabled='NO';
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truncate performance_schema.events_waits_history_long;
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drop table test.marker;
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flush global status;
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update performance_schema.setup_instruments set enabled='YES';
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update performance_schema.setup_consumers set enabled='YES';
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