# Tests for PERFORMANCE_SCHEMA

--source include/not_embedded.inc
--source include/have_innodb.inc
--source include/have_perfschema.inc
--source include/have_debug.inc
--source include/have_debug_sync.inc

# Presence of the query cache changes query stages,
# causing noise in the test output
#--source include/have_query_cache_disabled.inc

# Setup

connect (con1, localhost, root, , );

let $con1_THREAD_ID=`select thread_id from performance_schema.threads
  where PROCESSLIST_ID = connection_id()`;

--disable_warnings
drop table if exists t1;
--enable_warnings

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;

--disable_query_log
eval select $con1_THREAD_ID into @con1_thread_id;
--enable_query_log

--connection con1

# ALTER TABLE statement to inspect,
# execution should instrument progress

SET DEBUG_SYNC='RESET';
SET DEBUG_SYNC='copy_data_between_tables_before SIGNAL found_row WAIT_FOR wait_row EXECUTE 5';
--send ALTER TABLE t1 engine = innodb;

--connection default

SET DEBUG_SYNC='now WAIT_FOR found_row';

# Find the statement id of the ALTER TABLE
--enable_prepare_warnings
select event_id from performance_schema.events_statements_current
  where thread_id = @con1_thread_id into @con1_stmt_id;
--disable_prepare_warnings

# completed 0
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
  from performance_schema.events_stages_current
  where (thread_id = @con1_thread_id);

SET DEBUG_SYNC='now SIGNAL wait_row';

#======

SET DEBUG_SYNC='now WAIT_FOR found_row';

# completed 1
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
  from performance_schema.events_stages_current
  where (thread_id = @con1_thread_id);

SET DEBUG_SYNC='now SIGNAL wait_row';

#======

SET DEBUG_SYNC='now WAIT_FOR found_row';

# completed 2
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
  from performance_schema.events_stages_current
  where (thread_id = @con1_thread_id);

SET DEBUG_SYNC='now SIGNAL wait_row';

#======

SET DEBUG_SYNC='now WAIT_FOR found_row';

# completed 3
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
  from performance_schema.events_stages_current
  where (thread_id = @con1_thread_id);

SET DEBUG_SYNC='now SIGNAL wait_row';

#======

SET DEBUG_SYNC='now WAIT_FOR found_row';

# completed 4
select EVENT_NAME, WORK_COMPLETED, WORK_ESTIMATED
  from performance_schema.events_stages_current
  where (thread_id = @con1_thread_id);

SET DEBUG_SYNC='now SIGNAL wait_row';

#======

--connection con1

# Complete the ALTER TABLE statement.
--reap

# Make sure the ALTER TABLE cleanup is executed,
# as the last stages are after writing back to the client,
# and done asynchronously from the last 'reap'.
select "After payload";

--connection default

--echo # Dumping ALTER TABLE stages

# Print all stages for this ALTER TABLE statement
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;

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();