path: root/mysql-test/main/stat_tables.test

# Tests will be skipped for the view protocol because the view protocol creates 
# an additional util connection and other statistics data
--source include/no_view_protocol.inc
--source include/have_stat_tables.inc
--source include/have_partition.inc
--source include/have_sequence.inc

select @@global.use_stat_tables;
select @@session.use_stat_tables;

set @save_use_stat_tables=@@use_stat_tables;
set @save_histogram_size=@@global.histogram_size;
set @@global.histogram_size=0,@@local.histogram_size=0;
set optimizer_use_condition_selectivity=4;

set use_stat_tables='preferably';
set @save_histogram_type=@@histogram_type;
set histogram_type='single_prec_hb';

--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
create index i_p_retailprice on part(p_retailprice);
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;
FLUSH TABLE mysql.table_stats, mysql.index_stats;
--enable_warnings
--enable_result_log
--enable_query_log

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

set optimizer_switch=@save_optimizer_switch; 

set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';

let $Q5=
select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
from customer, orders, lineitem, supplier, nation, region
where c_custkey = o_custkey and l_orderkey = o_orderkey
      and l_suppkey = s_suppkey and c_nationkey = s_nationkey
      and s_nationkey = n_nationkey and n_regionkey = r_regionkey
      and r_name = 'AMERICA' and o_orderdate >= date '1995-01-01'
      and o_orderdate < date '1995-01-01' + interval '1' year
group by n_name
order by revenue desc;

eval EXPLAIN $Q5;
eval $Q5;

set optimizer_switch=@save_optimizer_switch;

delete from mysql.index_stats;

--disable_query_log
--disable_result_log
--disable_warnings
ANALYZE TABLE
customer, lineitem, nation, orders, part, partsupp, region, supplier;
FLUSH TABLE mysql.table_stats, mysql.index_stats;
--enable_warnings
--enable_result_log
--enable_query_log

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

select * from mysql.table_stats where table_name='orders';
select * from mysql.index_stats where table_name='orders';
select (select cardinality from mysql.table_stats where table_name='orders') /
       (select avg_frequency from mysql.index_stats 
          where index_name='i_o_orderdate' and prefix_arity=1) as n_distinct; 
select count(distinct o_orderdate) from orders;
select (select cardinality from mysql.table_stats where table_name='orders') /
       (select avg_frequency from mysql.index_stats 
          where index_name='i_o_custkey' and prefix_arity=1) as n_distinct;
select count(distinct o_custkey) from orders; 
show index from orders;
select index_name, column_name, cardinality from information_schema.statistics
  where table_name='orders';

set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='index_condition_pushdown=off';

eval EXPLAIN $Q5;
eval $Q5;

set optimizer_switch=@save_optimizer_switch;

let $Q8=
select o_year,
       sum(case when nation = 'UNITED STATES' then volume else 0 end) /
       sum(volume) as mkt_share
from (select extract(year from o_orderdate) as o_year,
             l_extendedprice * (1-l_discount) as volume, 
             n2.n_name as nation
      from part, supplier, lineitem, orders, customer, 
           nation n1, nation n2, region
      where p_partkey = l_partkey and s_suppkey = l_suppkey
            and l_orderkey = o_orderkey and o_custkey = c_custkey
            and c_nationkey = n1.n_nationkey and n1.n_regionkey = r_regionkey
            and r_name = 'AMERICA' and s_nationkey = n2.n_nationkey
            and o_orderdate between date '1995-01-01' and date '1996-12-31'
            and p_type = 'STANDARD BRUSHED STEEL' ) as all_nations
group by o_year
order by o_year;

eval EXPLAIN $Q8;
eval $Q8;


let $Q9=
select nation, o_year, sum(amount) as sum_profit
from (select n_name as nation, 
      extract(year from o_orderdate) as o_year,
      l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount
      from part, supplier, lineitem, partsupp, orders, nation
      where s_suppkey = l_suppkey and ps_suppkey = l_suppkey
            and ps_partkey = l_partkey and p_partkey = l_partkey
            and o_orderkey = l_orderkey and s_nationkey = n_nationkey
            and p_name like '%green%') as profit
group by nation, o_year
order by nation, o_year desc;

eval EXPLAIN $Q9;
eval $Q9;


set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='extended_keys=on';

let $QQ1=
select o_orderkey, p_partkey
  from part, lineitem, orders
  where p_retailprice > 1100 and o_orderdate='1997-01-01' 
        and o_orderkey=l_orderkey and p_partkey=l_partkey;

eval EXPLAIN $QQ1;
eval $QQ1;

set optimizer_switch=@save_optimizer_switch;


DROP DATABASE dbt3_s001;

use test;

--echo #
--echo # Bug mdev-473: ANALYZE table locked for write
--echo # 

set use_stat_tables='complementary';

create table t1 (i int);

lock table t1 write;
analyze table t1;
alter table t1 add column a varchar(8);

drop table t1;

--echo #
--echo # Bug mdev-487: memory leak in ANALYZE with stat tables
--echo # 

SET  use_stat_tables = 'preferably';

CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2);
DELETE FROM t1 WHERE a=1;

ANALYZE TABLE t1;

DROP TABLE t1;

--echo #
--echo # Bug mdev-518: corrupted/missing statistical tables
--echo # 

CREATE TABLE t1 (i int) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1),(2);

FLUSH TABLE t1;
SET use_stat_tables='never';
EXPLAIN SELECT * FROM t1;

--move_file $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD.save

FLUSH TABLES;
SET use_stat_tables='preferably';
--disable_warnings
EXPLAIN SELECT * FROM t1;
--enable_warnings

# Cleanup
--move_file $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD.save $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD
DROP TABLE t1;

set use_stat_tables=@save_use_stat_tables;

--echo #
--echo # Bug mdev-5204: invalid impossible where after reading const tables  
--echo #                when use_stat_tables = 'preferably'
--echo #

set use_stat_tables = 'preferably';

CREATE TABLE t1 (id int PRIMARY KEY) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1),(2);
ANALYZE TABLE t1;

CREATE TABLE t2 (name char(3)) ENGINE=MyISAM;
ANALYZE TABLE t2;
INSERT INTO t2 VALUES ('USA'),('AUS');

SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;
EXPLAIN
SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;

ANALYZE TABLE t2;

SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;
EXPLAIN
SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;

DROP TABLE t1,t2;

--echo #
--echo # MDEV-7370: Server deadlocks on renaming a table for which persistent statistics exists
--echo #

--disable_warnings
drop database if exists db1;
drop database if exists db1;
--enable_warnings

create database db1;
create database db2;
use db1;
--echo #
--echo # First, run the original testcase:
--echo #
create table t1 (i int);
insert into t1 values (10),(20);
analyze table t1 persistent for all;
rename table t1 to db2.t1;

--echo # Verify that stats in the old database are gone:
select * from mysql.column_stats where db_name='db1' and table_name='t1';
select * from mysql.table_stats where db_name='db1' and table_name='t1';

--echo # Verify that stats are present in the new database:
select * from mysql.column_stats where db_name='db2' and table_name='t1';
select * from mysql.table_stats where db_name='db2' and table_name='t1';


--echo #
--echo # Now, try with more than one column and with indexes:
--echo #
use test;
create table t1(a int primary key);
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);


use db1;
create table t2 (a int, b int, c int, key IDX1(a), key IDX2(a,b));
insert into t2 select a/10, a/2, a from test.t1;
analyze table t2 persistent for all;

alter table t2 rename db2.t2;

--echo # Verify that stats in the old database are gone:
select * from mysql.table_stats where db_name='db1' and table_name='t2';
select * from mysql.column_stats where db_name='db1' and table_name='t2';
select * from mysql.index_stats where db_name='db1' and table_name='t2';

--echo # Verify that stats are present in the new database:
select * from mysql.table_stats where db_name='db2' and table_name='t2';
select * from mysql.column_stats where db_name='db2' and table_name='t2';
select * from mysql.index_stats where db_name='db2' and table_name='t2';

use db2;
--echo #
--echo # Now, rename within the same database and verify:
--echo #
rename table t2 to t3;
--echo # No stats under old name:
select * from mysql.table_stats where db_name='db2' and table_name='t2';
select * from mysql.column_stats where db_name='db2' and table_name='t2';
select * from mysql.index_stats where db_name='db2' and table_name='t2';
--echo # Stats under the new name:
select * from mysql.table_stats where db_name='db2' and table_name='t3';
select * from mysql.column_stats where db_name='db2' and table_name='t3';
select * from mysql.index_stats where db_name='db2' and table_name='t3';

use test;
drop database db1;
drop database db2;
drop table t1;

--echo #
--echo # MDEV-16552: [10.0] ASAN global-buffer-overflow in is_stat_table / statistics_for_tables_is_needed
--echo #

SET use_stat_tables = PREFERABLY;
SELECT CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' );
set use_stat_tables=@save_use_stat_tables;

--echo #
--echo # MDEV-16757: manual addition of min/max statistics for BLOB
--echo #

SET use_stat_tables= PREFERABLY;

CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
ANALYZE TABLE t1;
--sorted_result
SELECT * FROM mysql.column_stats;
DELETE FROM mysql.column_stats
  WHERE db_name='test' AND table_name='t1' AND column_name='t';
INSERT INTO mysql.column_stats VALUES
  ('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
--sorted_result
SELECT * FROM mysql.column_stats;

SELECT pk FROM t1;

DROP TABLE t1;

set use_stat_tables=@save_use_stat_tables;

--echo #
--echo # MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
--echo #

SET use_stat_tables= PREFERABLY;

CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
ANALYZE TABLE t1;
SELECT * FROM t1;
SELECT * FROM mysql.column_stats;

CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
SELECT * FROM t1;
SELECT * FROM mysql.column_stats;

DROP TABLE t1;

set use_stat_tables=@save_use_stat_tables;

--echo #
--echo # MDEV-17023: Crash during read_histogram_for_table with optimizer_use_condition_selectivity set to 4
--echo #

set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set @@optimizer_use_condition_selectivity=4;
set @@use_stat_tables= PREFERABLY;
explain
SELECT * FROM INFORMATION_SCHEMA.PROFILING, mysql.user;
set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
set use_stat_tables=@save_use_stat_tables;

--echo #
--echo # MDEV-17734: AddressSanitizer: use-after-poison in create_key_parts_for_pseudo_indexes
--echo #

set @@use_stat_tables= PREFERABLY;
set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
set @@optimizer_use_condition_selectivity=4;
set @save_use_stat_tables= @@use_stat_tables;
create table t1 (a int, b int);
insert into t1(a,b) values (1,2),(1,3),(1,4),(1,5),(2,6),(2,7),(3,8),(3,9),(3,9),(4,10);

analyze table t1 persistent for columns (a) indexes ();
select * from t1 where a=1 and b=3;
set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
set use_stat_tables=@save_use_stat_tables;
drop table t1;

--echo #
--echo # MDEV-16711:CREATE OR REPLACE TABLE introducing BLOB column
--echo #

SET use_stat_tables= PREFERABLY;

CREATE TABLE t1 (pk INT PRIMARY KEY, t CHAR(60));
INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
ANALYZE TABLE t1;
CREATE OR REPLACE TABLE t1 (pk INT PRIMARY KEY, t TEXT);

SELECT MAX(pk) FROM t1;

DROP TABLE t1;
set use_stat_tables=@save_use_stat_tables;



--echo #
--echo # MDEV-17605: SHOW INDEXES with use_stat_tables='preferably'
--echo #

set use_stat_tables='preferably';

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
create index i_p_retailprice on part(p_retailprice);
delete from mysql.table_stats;
delete from mysql.column_stats;
delete from mysql.index_stats;
ANALYZE TABLE lineitem;
FLUSH TABLE mysql.table_stats, mysql.index_stats;
--enable_warnings
--enable_result_log
--enable_query_log

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

SHOW INDEXES FROM lineitem;

SELECT * FROM INFORMATION_SCHEMA.STATISTICS WHERE table_name='lineitem';

SELECT
  COUNT(DISTINCT l_orderkey), COUNT(DISTINCT l_orderkey,l_linenumber),
  COUNT(DISTINCT l_shipDATE),
  COUNT(DISTINCT l_partkey), COUNT(DISTINCT l_partkey,l_suppkey),
  COUNT(DISTINCT l_suppkey), COUNT(DISTINCT l_receiptDATE),
  COUNT(DISTINCT l_orderkey, l_quantity), COUNT(DISTINCT l_commitDATE)
FROM lineitem;

set optimizer_switch=@save_optimizer_switch;

DROP DATABASE dbt3_s001;
USE test;

delete from mysql.table_stats;
delete from mysql.column_stats;
delete from mysql.index_stats;

--echo #
--echo # MDEV-19352: Server crash in alloc_histograms_for_table_share upon query from information schema
--echo #

use test;
set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
set @@optimizer_use_condition_selectivity= 4;
set use_stat_tables='preferably';

CREATE TABLE t1 (a INT);
CREATE TABLE t2 (b INT);
CREATE VIEW v AS SELECT * FROM t1 JOIN t2;
--error ER_NO_SUCH_TABLE
INSERT INTO t2 SELECT * FROM x;

select * from information_schema.tables where table_name='v';
set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;

drop table t1,t2;
drop view v;

--echo #
--echo # MDEV-19407: Assertion `field->table->stats_is_read' failed in is_eits_usable
--echo #

set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
set @@optimizer_use_condition_selectivity= 1;
set @@use_stat_tables='never';
create table t1(pk int);
insert into t1 values (4),(3);
set @@optimizer_use_condition_selectivity= 4;
set use_stat_tables='preferably';

--error ER_NO_SUCH_TABLE
INSERT INTO t1 SELECT * FROM x;
CREATE TABLE t2 SELECT pk FROM t1 WHERE pk>2;
select * from t2;
drop table t1,t2;

create table t1(a int,b int, key k1(a) );
insert into t1 values(1,1),(2,2),(3,3);
analyze table t1;
select * from mysql.index_stats, t1 where index_name='k1' and t1.a > 1 and t1.b > 1;
drop table t1;

set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;

set @save_optimizer_switch=@@optimizer_switch;
set use_stat_tables=@save_use_stat_tables;

--echo #
--echo # MDEV-18899: Server crashes in Field::set_warning_truncated_wrong_value
--echo #

set names utf8;
set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set optimizer_use_condition_selectivity=4;
set use_stat_tables=preferably;
set histogram_size=255;

create table t1 ( a varchar(255) character set utf8);
insert into t1 values (REPEAT('ӥ',255)), (REPEAT('ç',255));

analyze table t1;
select HEX(RIGHT(min_value, 1)), length(min_value) from mysql.column_stats where db_name='test' and table_name='t1';
select HEX(RIGHT(max_value, 1)), length(max_value) from mysql.column_stats where db_name='test' and table_name='t1';
analyze select * from t1 where a  >= 'ӥ';

set @save_sql_mode= @@sql_mode;
set sql_mode='ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';
update mysql.column_stats set min_value= REPEAT('ӥ',255) where db_name='test' and table_name='t1';
select HEX(RIGHT(min_value, 1)), length(min_value) from mysql.column_stats where db_name='test' and table_name='t1';
analyze select * from t1 where a  >= 'ӥ';

set names latin1;
drop table t1;

CREATE TABLE t1 (col1 date);
INSERT INTO t1 VALUES('2004-01-01'),('2004-02-29');
INSERT INTO t1 VALUES('0000-10-31');
analyze table t1;
update mysql.column_stats set min_value='2004-0-31123' where db_name='test' and table_name='t1';
select min_value from mysql.column_stats where db_name='test' and table_name='t1';
select * from t1;
set @@sql_mode= @save_sql_mode;
set @@use_stat_tables=@save_use_stat_tables;
set @@histogram_size= @save_histogram_size;
set @@histogram_type=@save_histogram_type;
set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table t1;

--echo #
--echo # MDEV-20589: Server still crashes in Field::set_warning_truncated_wrong_value
--echo #

set names utf8;
create table t1 ( a varchar(255) character set utf8);
insert into t1 values (REPEAT('ӥ',255)), (REPEAT('ç',255));

set use_stat_tables='preferably';
analyze table t1 persistent for all;

set @save_sql_mode= @@sql_mode;
set sql_mode='ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';
update mysql.column_stats set min_value= REPEAT('ӥ',256) where db_name='test' and table_name='t1';
set @@sql_mode= @save_sql_mode;

select length(a) from t1 where a=REPEAT('ӥ',255);

set names latin1;
set @@use_stat_tables=@save_use_stat_tables;
drop table t1;

--echo #
--echo # MDEV-23753: SIGSEGV in Column_stat::store_stat_fields
--echo #

CREATE TABLE t1 (a INT, b INT) PARTITION BY HASH (b) PARTITIONS 2;
LOCK TABLES t1 WRITE;
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS (a) INDEXES ();
ANALYZE TABLE t1 PERSISTENT FOR COLUMNS (nonexisting) INDEXES (nonexisting);
DROP TABLE t1;


--echo # please keep this at the last
set @@global.histogram_size=@save_histogram_size;

--echo # Start of 10.4 tests

set histogram_size=0;

--echo #
--echo # MDEV-17255: New optimizer defaults and ANALYZE TABLE
--echo #

create table t1 (a int, b int);
insert into t1(a,b) values (1,2),(1,3),(1,4),(1,5),(2,6),(2,7),(3,8),(3,9),(3,9),(4,10);
set use_stat_tables= preferably_for_queries;
--echo #
--echo # with use_stat_tables= PREFERABLY_FOR_QUERIES
--echo # analyze table t1 will not collect statistics
--echo #

analyze table t1;
select * from mysql.column_stats;
analyze
select * from t1 where a = 1 and b=3;

--echo #
--echo # with use_stat_tables= PREFERABLY_FOR_QUERIES
--echo # analyze table t1 will  collect statistics if we use PERSISTENT
--echo # for columns, indexes or everything
--echo #

analyze table t1 persistent for columns (a) indexes ();
select * from mysql.column_stats;
--echo # filtered shows that we used the data from stat tables
analyze
select * from t1 where a = 1 and b=3;

--echo #
--echo # with use_stat_tables= PREFERABLY
--echo # analyze table t1 will collect statistics
--echo #

set use_stat_tables=PREFERABLY;
analyze table t1;
select * from mysql.column_stats;
--echo # filtered shows that we used the data from stat tables
analyze
select * from t1 where a=1 and b=3;
drop table t1;

set @@global.histogram_size=@save_histogram_size;

--echo #
--echo # End of 10.4 tests
--echo #

--echo #
--echo # MDEV-29693 ANALYZE TABLE still flushes table definition cache
--echo # when engine-independent statistics is used
--echo #

create table t1 (a int);
insert into t1 select seq from seq_0_to_99;
analyze table t1 persistent for all;
analyze table t1 persistent for all;

explain extended select count(*) from t1 where a < 50;

connect (con1, localhost, root,,);
--connection con1
explain extended select count(*) from t1 where a < 50;

let $open_tables=`select variable_value from information_schema.global_status where variable_name="OPENED_TABLES"`;

--connection default
update t1 set a= a +100;

--echo # Explain shows outdated statistics:
explain extended select count(*) from t1 where a < 50;
--connection con1
explain extended select count(*) from t1 where a < 50;

--connection default
analyze table t1 persistent for all;
--echo # Now explain shows updated statistics:
explain extended select count(*) from t1 where a < 50;
--connection con1
explain extended select count(*) from t1 where a < 50;

--connection con1
--echo # Run update and analyze in con1:
update t1 set a= a - 150;
analyze table t1 persistent for all;

--connection default
--echo # Explain shows updated statistics:
explain extended select count(*) from t1 where a < 50;

disconnect con1;

let $new_open_tables=`select variable_value from information_schema.global_status where variable_name="OPENED_TABLES"`;

if ($open_tables != $new_open_tables)
{
--let $diff=`select $new_open_tables - $open_tables`
--echo "Fail: Test opened $diff new tables, 0 was expected"
}

drop table t1;

--echo #
--echo # End of 10.6 tests
--echo #