config root man

--source include/not_embedded.inc
--source include/have_perfschema.inc

UPDATE performance_schema.setup_instruments SET enabled = 'NO', timed = 'YES';

UPDATE performance_schema.setup_instruments SET enabled = 'YES'
WHERE name in ('wait/io/table/sql/handler',
               'wait/lock/table/sql/handler');

--disable_warnings
drop procedure if exists before_payload;
drop procedure if exists after_payload;
--enable_warnings

delimiter $$;

create procedure before_payload()
begin
  TRUNCATE TABLE performance_schema.table_io_waits_summary_by_index_usage;
  TRUNCATE TABLE performance_schema.table_io_waits_summary_by_table;
  TRUNCATE TABLE performance_schema.events_waits_history_long;
  TRUNCATE TABLE performance_schema.events_waits_history;
  TRUNCATE TABLE performance_schema.events_waits_current;
end
$$

create procedure after_payload()
begin
  select count(1) as number_seen,
    OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME,
    OPERATION, NUMBER_OF_BYTES
    from performance_schema.events_waits_history_long
    where OBJECT_SCHEMA = "test"
    group by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME, OPERATION, NUMBER_OF_BYTES;

  select OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME,
    COUNT_STAR, COUNT_READ, COUNT_WRITE
    from performance_schema.table_io_waits_summary_by_index_usage
    where OBJECT_SCHEMA = "test"
    order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME, INDEX_NAME;

  select OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME,
    COUNT_STAR, COUNT_READ, COUNT_WRITE
    from performance_schema.table_io_waits_summary_by_table
    where OBJECT_SCHEMA = "test"
    order by OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME;
end
$$

delimiter ;$$


--disable_warnings
drop table if exists t1;
drop table if exists t2;
drop table if exists t3;
--enable_warnings

create table t0(v int);
create table t1(id1 int, a int);
create table t2(id1 int, id2 int, b int);
create table t3(id2 int, id3 int, c int);

insert into t0 values
  (0), (1), (2), (3), (4),
  (5), (6), (7), (8), (9);

insert into t1(id1, a)
  select v, 100*v from t0;

insert into t2(id1, id2, b)
  select X.v, 10*X.v + Y.v, 100*X.v + 10*Y.v
  from t0 X, t0 Y;

insert into t3(id2, id3, c)
  select 10*X.v + Y.v, 100*X.v + 10*Y.v + Z.v, 100*X.v + 10*Y.v + Z.v
  from t0 X, t0 Y, t0 Z;

analyze table t1;
analyze table t2;
analyze table t3;

select * from t1 order by a;

# Only dump a small part
select * from t2
  where (b >= 180) and (b <= 220)
  order by b;

# Only dump a small part
select * from t3
  where (c >= 587) and (c <= 612)
  order by c;

#
# TEST 1 (join, no index)
#

explain select t1.*, t2.*, t3.*
  from t1 join t2 using (id1) join t3 using (id2);

call before_payload();

# Payload query to analyse: should do batch io on t3

--disable_result_log
select t1.*, t2.*, t3.*
  from t1 join t2 using (id1) join t3 using (id2);
--enable_result_log

call after_payload();

#
# TEST 2 (join, with index)
#

alter table t1 add unique index(id1);
alter table t2 add unique index(id2);
alter table t2 add index(id1);
alter table t3 add unique index(id3);
alter table t3 add index(id2);

explain select t1.*, t2.*, t3.*
  from t1 join t2 using (id1) join t3 using (id2);

call before_payload();

# Payload query to analyse: should do batch io on t3

--disable_result_log
select t1.*, t2.*, t3.*
  from t1 join t2 using (id1) join t3 using (id2);
--enable_result_log

call after_payload();

# Cleanup

drop table t0;
drop table t1;
drop table t2;
drop table t3;

drop procedure before_payload;
drop procedure after_payload;

UPDATE performance_schema.setup_instruments SET enabled = 'YES', timed = 'YES';