connect  con1, localhost, root, , ;
drop table if exists t1;
create table t1(a int) engine = myisam;
insert into t1 values (1), (2), (3), (4), (5);
connection default;
update performance_schema.threads
set instrumented = 'NO'
  where processlist_id = connection_id();
truncate table performance_schema.events_statements_history_long;
truncate table performance_schema.events_stages_history_long;
connection con1;
SET DEBUG_SYNC='RESET';
SET DEBUG_SYNC='copy_data_between_tables_before SIGNAL found_row WAIT_FOR wait_row EXECUTE 5';
ALTER TABLE t1 engine = innodb;;
connection default;
SET DEBUG_SYNC='now WAIT_FOR found_row';
select event_id from performance_schema.events_statements_current
where thread_id = @con1_thread_id into @con1_stmt_id;
Warnings:
Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
from performance_schema.events_stages_current
where (thread_id = @con1_thread_id);
EVENT_NAME	WORK_COMPLETED	WORK_ESTIMATED
stage/sql/copy to tmp table	0	5
SET DEBUG_SYNC='now SIGNAL wait_row';
SET DEBUG_SYNC='now WAIT_FOR found_row';
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
from performance_schema.events_stages_current
where (thread_id = @con1_thread_id);
EVENT_NAME	WORK_COMPLETED	WORK_ESTIMATED
stage/sql/copy to tmp table	1	5
SET DEBUG_SYNC='now SIGNAL wait_row';
SET DEBUG_SYNC='now WAIT_FOR found_row';
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
from performance_schema.events_stages_current
where (thread_id = @con1_thread_id);
EVENT_NAME	WORK_COMPLETED	WORK_ESTIMATED
stage/sql/copy to tmp table	2	5
SET DEBUG_SYNC='now SIGNAL wait_row';
SET DEBUG_SYNC='now WAIT_FOR found_row';
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
from performance_schema.events_stages_current
where (thread_id = @con1_thread_id);
EVENT_NAME	WORK_COMPLETED	WORK_ESTIMATED
stage/sql/copy to tmp table	3	5
SET DEBUG_SYNC='now SIGNAL wait_row';
SET DEBUG_SYNC='now WAIT_FOR found_row';
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
from performance_schema.events_stages_current
where (thread_id = @con1_thread_id);
EVENT_NAME	WORK_COMPLETED	WORK_ESTIMATED
stage/sql/copy to tmp table	4	5
SET DEBUG_SYNC='now SIGNAL wait_row';
connection con1;
select "After payload";
After payload
After payload
connection default;
# Dumping ALTER TABLE stages
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
from performance_schema.events_stages_history_long
where (thread_id = @con1_thread_id)
and (nesting_event_id = @con1_stmt_id)
order by thread_id, event_id;
EVENT_NAME	WORK_COMPLETED	WORK_ESTIMATED
stage/sql/starting	NULL	NULL
stage/sql/checking permissions	NULL	NULL
stage/sql/init for update	NULL	NULL
stage/sql/Opening tables	NULL	NULL
stage/sql/After opening tables	NULL	NULL
stage/sql/setup	NULL	NULL
stage/sql/creating table	NULL	NULL
stage/sql/After create	NULL	NULL
stage/sql/System lock	NULL	NULL
stage/sql/table lock	NULL	NULL
stage/sql/After create	NULL	NULL
stage/sql/copy to tmp table	5	5
stage/sql/Enabling keys	NULL	NULL
stage/sql/Rename result table	NULL	NULL
stage/sql/Unlocking tables	NULL	NULL
stage/sql/Rename result table	NULL	NULL
stage/sql/End of update loop	NULL	NULL
stage/sql/Query end	NULL	NULL
stage/sql/Commit	NULL	NULL
stage/sql/closing tables	NULL	NULL
stage/sql/Unlocking tables	NULL	NULL
stage/sql/closing tables	NULL	NULL
stage/sql/Commit implicit	NULL	NULL
stage/sql/Starting cleanup	NULL	NULL
stage/sql/Freeing items	NULL	NULL
stage/sql/Reset for next command	NULL	NULL
SET DEBUG_SYNC='RESET';
connection con1;
drop table t1;
disconnect con1;
connection default;
update performance_schema.threads
set instrumented = 'YES'
  where processlist_id = connection_id();