# Tests for PERFORMANCE_SCHEMA

--source ../include/start_server_common.inc

#############################
# Setup database and tables.
#############################
--disable_warnings
drop table if exists db1.t1;
drop database if exists db1;
--enable_warnings
create database db1;
create table db1.t1 (a int, b char(10) default 'default',
                         unique key uidx(a));

#######################
# Execute few queries.
#######################
insert into db1.t1 values('1', 'abc');
insert into db1.t1 values('2', 'abc');
select * from db1.t1 where a='1';

#####################################################
# Run few queries on Performance Schema stats tables.
#####################################################
# There should be 3 entries in following table. 2 for insert and 1 for select.
# This is because lock stats are still in the table handles
select COUNT_STAR from performance_schema.table_io_waits_summary_by_table
       where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';
# There should be 1 entry in following table. Thats is for select.
# This is because lock stats are still in the table handles
select COUNT_STAR from performance_schema.table_io_waits_summary_by_index_usage
       where INDEX_NAME!='NULL';

# Now force aggregation by closing table handles
FLUSH TABLES;

# Stats are now missing
select COUNT_STAR from performance_schema.table_io_waits_summary_by_table
       where OBJECT_SCHEMA='db1' and OBJECT_NAME='t1';

# Stats are now missing
select COUNT_STAR from performance_schema.table_io_waits_summary_by_index_usage
       where INDEX_NAME!='NULL';

# Expect INDEX_STAT lost
--disable_warnings
select variable_value > 0 from performance_schema.global_status
  where variable_name like 'PERFORMANCE_SCHEMA_INDEX_STAT_LOST';

# While at it, check that FLUSH STATUS Resets the lost counter
FLUSH STATUS;

select variable_value from performance_schema.global_status
  where variable_name like 'PERFORMANCE_SCHEMA_INDEX_STAT_LOST';
--enable_warnings

###########
# Cleanup.
###########
drop database db1;