mariadb/mysql-test/t/stat_tables_par.test

--source include/have_stat_tables.inc
--source include/have_debug_sync.inc
--source include/not_embedded.inc

set @save_use_stat_tables=@@use_stat_tables;

set use_stat_tables='preferably';

--disable_warnings
DROP DATABASE IF EXISTS dbt3_s001;
--enable_warnings

CREATE DATABASE dbt3_s001;

use dbt3_s001;

set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='extended_keys=off';
 
--disable_query_log
--disable_result_log
--disable_warnings
--source include/dbt3_s001.inc
delete from mysql.table_stats;
delete from mysql.column_stats;
delete from mysql.index_stats;
ANALYZE TABLE
customer, lineitem, nation, orders, part, partsupp, region, supplier;
--enable_warnings
--enable_result_log
--enable_query_log

select * from mysql.table_stats;
select * from mysql.index_stats;


#
# Test for parallel memory allocation for statistical data
# 
#    assumes that start the code of memory allocation for stats data has this line:
#
#       DEBUG_SYNC(thd, "statistics_mem_alloc_start1");
#       DEBUG_SYNC(thd, "statistics_mem_alloc_start2");
#

let $Q6=
select sum(l_extendedprice*l_discount) as revenue
from lineitem
where l_shipdate >= date '1994-01-01' 
      and l_shipdate < date '1994-01-01' + interval '1' year
      and l_discount between 0.06 - 0.01 and 0.06 + 0.01
      and l_quantity < 24;

flush table lineitem;
set use_stat_tables='never';
eval $Q6;

connect (con1, localhost, root,,);
connect (con2, localhost, root,,);

connection con1;
set debug_sync='statistics_mem_alloc_start1  WAIT_FOR second_thread_started_too';
set debug_sync='statistics_mem_alloc_start2  SIGNAL first_thread_working';
use dbt3_s001;
set use_stat_tables='preferably';
--send_eval $Q6                                            

connection con2;
set debug_sync='statistics_mem_alloc_start1  SIGNAL second_thread_started_too';
set debug_sync='statistics_mem_alloc_start2  WAIT_FOR first_thread_working';
use dbt3_s001;
set use_stat_tables='preferably';
--send_eval $Q6

connection con1;
--reap

connection con2;
--reap

connection default;
set use_stat_tables='preferably';
disconnect con1;
disconnect con2;
set debug_sync='RESET';

#
# Test for parallel statistics collection
# 
#    assumes that start of stats collection code has this line:
#
#       DEBUG_SYNC(thd, "statistics_collection_start1");
#       DEBUG_SYNC(thd, "statistics_collection_start2");
#

select * from mysql.index_stats where table_name='lineitem' order by index_name;
delete from mysql.index_stats 
  where table_name='lineitem' and
        index_name in ('i_l_shipdate', 'i_l_receiptdate');
select * from mysql.index_stats where table_name='lineitem' order by index_name;
--disable_result_log
--disable_warnings
analyze table lineitem persistent for columns() indexes (i_l_shipdate);
--enable_warnings
--enable_result_log
select * from mysql.index_stats where table_name='lineitem' order by index_name;
delete from mysql.index_stats 
  where table_name='lineitem' and index_name= 'i_l_shipdate';
select * from mysql.index_stats where table_name='lineitem' order by index_name;

connect (con1, localhost, root,,);
connect (con2, localhost, root,,);

connection con1;
set debug_sync='statistics_collection_start1  WAIT_FOR second_thread_started_too';
set debug_sync='statistics_collection_start2  SIGNAL first_thread_working';
use dbt3_s001;
set use_stat_tables='preferably';
--send analyze table lineitem persistent for columns() indexes (i_l_shipdate)

connection con2;
set debug_sync='statistics_collection_start1  SIGNAL second_thread_started_too';
set debug_sync='statistics_collection_start2  WAIT_FOR first_thread_working';
use dbt3_s001;
set use_stat_tables='preferably';
--send analyze table lineitem persistent for columns() indexes (i_l_receiptdate)

connection con1;
--disable_result_log
--disable_warnings
--reap
--enable_warnings
--enable_result_log

connection con2;
--disable_result_log
--disable_warnings
--reap
--enable_warnings
--enable_result_log

connection default;
disconnect con1;
disconnect con2;
set debug_sync='RESET';

select * from mysql.index_stats where table_name='lineitem' order by index_name;

#
# Test for parallel statistics collection and update (innodb)
# 

select * from mysql.index_stats where table_name='lineitem'
 order by index_name, prefix_arity;
set debug_sync='RESET';

let $innodb_storage_engine= 0;
if (`SELECT UPPER(@@storage_engine) = 'INNODB'`)
{
  let $innodb_storage_engine= 1;
}

connect (con1, localhost, root,,);
connect (con2, localhost, root,,);

connection con1;
set debug_sync='statistics_collection_start SIGNAL parked WAIT_FOR finish';
use dbt3_s001;
set use_stat_tables='preferably';
--send analyze table lineitem persistent for all

connection con2;
set debug_sync='now WAIT_FOR parked';
use dbt3_s001;
set use_stat_tables='never';
if ($innodb_storage_engine)
{
  select * from lineitem where l_orderkey=1 and l_partkey=156;
  delete from lineitem where l_orderkey=1 and l_partkey=156;
  select * from lineitem where l_orderkey=1 and l_partkey=156;
}
set debug_sync='now SIGNAL finish';

connection con1;
--disable_result_log
--disable_warnings
--reap
--enable_warnings
--enable_result_log

connection default;
disconnect con1;
disconnect con2;
set debug_sync='RESET';

select * from mysql.index_stats where table_name='lineitem'
  order by index_name, prefix_arity;

DROP DATABASE dbt3_s001;

use test;

set use_stat_tables=@save_use_stat_tables;