mirror of
https://github.com/MariaDB/server.git
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703 lines
21 KiB
Text
703 lines
21 KiB
Text
# Tests will be skipped for the view protocol because the view protocol creates
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# an additional util connection and other statistics data
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--source include/no_view_protocol.inc
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--source include/have_stat_tables.inc
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--source include/have_partition.inc
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--source include/have_sequence.inc
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select @@global.use_stat_tables;
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select @@session.use_stat_tables;
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set @save_use_stat_tables=@@use_stat_tables;
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set @save_histogram_size=@@global.histogram_size;
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set @@global.histogram_size=0,@@local.histogram_size=0;
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set optimizer_use_condition_selectivity=4;
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set use_stat_tables='preferably';
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set @save_histogram_type=@@histogram_type;
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set histogram_type='single_prec_hb';
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--disable_warnings
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DROP DATABASE IF EXISTS dbt3_s001;
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--enable_warnings
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CREATE DATABASE dbt3_s001;
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use dbt3_s001;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='extended_keys=off';
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--disable_query_log
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--disable_result_log
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--disable_warnings
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--source include/dbt3_s001.inc
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create index i_p_retailprice on part(p_retailprice);
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delete from mysql.table_stats;
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delete from mysql.column_stats;
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delete from mysql.index_stats;
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ANALYZE TABLE
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customer, lineitem, nation, orders, part, partsupp, region, supplier;
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FLUSH TABLE mysql.table_stats, mysql.index_stats;
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--enable_warnings
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--enable_result_log
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--enable_query_log
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select * from mysql.table_stats;
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select * from mysql.index_stats;
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set optimizer_switch=@save_optimizer_switch;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='index_condition_pushdown=off';
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let $Q5=
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select n_name, sum(l_extendedprice * (1 - l_discount)) as revenue
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from customer, orders, lineitem, supplier, nation, region
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where c_custkey = o_custkey and l_orderkey = o_orderkey
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and l_suppkey = s_suppkey and c_nationkey = s_nationkey
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and s_nationkey = n_nationkey and n_regionkey = r_regionkey
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and r_name = 'AMERICA' and o_orderdate >= date '1995-01-01'
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and o_orderdate < date '1995-01-01' + interval '1' year
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group by n_name
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order by revenue desc;
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eval EXPLAIN $Q5;
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eval $Q5;
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set optimizer_switch=@save_optimizer_switch;
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delete from mysql.index_stats;
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--disable_query_log
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--disable_result_log
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--disable_warnings
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ANALYZE TABLE
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customer, lineitem, nation, orders, part, partsupp, region, supplier;
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FLUSH TABLE mysql.table_stats, mysql.index_stats;
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--enable_warnings
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--enable_result_log
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--enable_query_log
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select * from mysql.table_stats;
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select * from mysql.index_stats;
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select * from mysql.table_stats where table_name='orders';
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select * from mysql.index_stats where table_name='orders';
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select (select cardinality from mysql.table_stats where table_name='orders') /
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(select avg_frequency from mysql.index_stats
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where index_name='i_o_orderdate' and prefix_arity=1) as n_distinct;
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select count(distinct o_orderdate) from orders;
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select (select cardinality from mysql.table_stats where table_name='orders') /
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(select avg_frequency from mysql.index_stats
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where index_name='i_o_custkey' and prefix_arity=1) as n_distinct;
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select count(distinct o_custkey) from orders;
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show index from orders;
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select index_name, column_name, cardinality from information_schema.statistics
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where table_name='orders';
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='index_condition_pushdown=off';
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eval EXPLAIN $Q5;
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eval $Q5;
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set optimizer_switch=@save_optimizer_switch;
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let $Q8=
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select o_year,
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sum(case when nation = 'UNITED STATES' then volume else 0 end) /
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sum(volume) as mkt_share
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from (select extract(year from o_orderdate) as o_year,
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l_extendedprice * (1-l_discount) as volume,
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n2.n_name as nation
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from part, supplier, lineitem, orders, customer,
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nation n1, nation n2, region
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where p_partkey = l_partkey and s_suppkey = l_suppkey
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and l_orderkey = o_orderkey and o_custkey = c_custkey
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and c_nationkey = n1.n_nationkey and n1.n_regionkey = r_regionkey
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and r_name = 'AMERICA' and s_nationkey = n2.n_nationkey
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and o_orderdate between date '1995-01-01' and date '1996-12-31'
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and p_type = 'STANDARD BRUSHED STEEL' ) as all_nations
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group by o_year
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order by o_year;
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eval EXPLAIN $Q8;
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eval $Q8;
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let $Q9=
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select nation, o_year, sum(amount) as sum_profit
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from (select n_name as nation,
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extract(year from o_orderdate) as o_year,
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l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount
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from part, supplier, lineitem, partsupp, orders, nation
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where s_suppkey = l_suppkey and ps_suppkey = l_suppkey
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and ps_partkey = l_partkey and p_partkey = l_partkey
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and o_orderkey = l_orderkey and s_nationkey = n_nationkey
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and p_name like '%green%') as profit
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group by nation, o_year
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order by nation, o_year desc;
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eval EXPLAIN $Q9;
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eval EXPLAIN EXTENDED $Q9;
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eval $Q9;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='extended_keys=on';
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let $QQ1=
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select o_orderkey, p_partkey
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from part, lineitem, orders
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where p_retailprice > 1100 and o_orderdate='1997-01-01'
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and o_orderkey=l_orderkey and p_partkey=l_partkey;
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eval EXPLAIN $QQ1;
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eval $QQ1;
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set optimizer_switch=@save_optimizer_switch;
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DROP DATABASE dbt3_s001;
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use test;
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--echo #
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--echo # Bug mdev-473: ANALYZE table locked for write
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--echo #
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set use_stat_tables='complementary';
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create table t1 (i int);
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lock table t1 write;
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analyze table t1;
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alter table t1 add column a varchar(8);
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drop table t1;
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--echo #
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--echo # Bug mdev-487: memory leak in ANALYZE with stat tables
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--echo #
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SET use_stat_tables = 'preferably';
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CREATE TABLE t1 (a INT);
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INSERT INTO t1 VALUES (1),(2);
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DELETE FROM t1 WHERE a=1;
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ANALYZE TABLE t1;
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DROP TABLE t1;
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--echo #
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--echo # Bug mdev-518: corrupted/missing statistical tables
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--echo #
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CREATE TABLE t1 (i int) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (1),(2);
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FLUSH TABLE t1;
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SET use_stat_tables='never';
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EXPLAIN SELECT * FROM t1;
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--move_file $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD.save
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FLUSH TABLES;
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SET use_stat_tables='preferably';
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--disable_warnings
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EXPLAIN SELECT * FROM t1;
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--enable_warnings
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# Cleanup
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--move_file $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD.save $MYSQLTEST_VARDIR/mysqld.1/data/mysql/table_stats.MAD
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DROP TABLE t1;
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set use_stat_tables=@save_use_stat_tables;
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--echo #
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--echo # Bug mdev-5204: invalid impossible where after reading const tables
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--echo # when use_stat_tables = 'preferably'
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--echo #
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set use_stat_tables = 'preferably';
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CREATE TABLE t1 (id int PRIMARY KEY) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (1),(2);
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ANALYZE TABLE t1;
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CREATE TABLE t2 (name char(3)) ENGINE=MyISAM;
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ANALYZE TABLE t2;
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INSERT INTO t2 VALUES ('USA'),('AUS');
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SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;
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EXPLAIN
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SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;
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ANALYZE TABLE t2;
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SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;
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EXPLAIN
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SELECT * FROM t1 STRAIGHT_JOIN t2 WHERE name IN ( 'AUS','YEM' ) AND id = 1;
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DROP TABLE t1,t2;
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--echo #
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--echo # MDEV-7370: Server deadlocks on renaming a table for which persistent statistics exists
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--echo #
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--disable_warnings
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drop database if exists db1;
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drop database if exists db1;
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--enable_warnings
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create database db1;
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create database db2;
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use db1;
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--echo #
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--echo # First, run the original testcase:
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--echo #
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create table t1 (i int);
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insert into t1 values (10),(20);
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analyze table t1 persistent for all;
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rename table t1 to db2.t1;
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--echo # Verify that stats in the old database are gone:
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select * from mysql.column_stats where db_name='db1' and table_name='t1';
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select * from mysql.table_stats where db_name='db1' and table_name='t1';
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--echo # Verify that stats are present in the new database:
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select * from mysql.column_stats where db_name='db2' and table_name='t1';
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select * from mysql.table_stats where db_name='db2' and table_name='t1';
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--echo #
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--echo # Now, try with more than one column and with indexes:
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--echo #
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use test;
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create table t1(a int primary key);
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insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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use db1;
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create table t2 (a int, b int, c int, key IDX1(a), key IDX2(a,b));
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insert into t2 select a/10, a/2, a from test.t1;
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analyze table t2 persistent for all;
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alter table t2 rename db2.t2;
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--echo # Verify that stats in the old database are gone:
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select * from mysql.table_stats where db_name='db1' and table_name='t2';
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select * from mysql.column_stats where db_name='db1' and table_name='t2';
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select * from mysql.index_stats where db_name='db1' and table_name='t2';
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--echo # Verify that stats are present in the new database:
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select * from mysql.table_stats where db_name='db2' and table_name='t2';
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select * from mysql.column_stats where db_name='db2' and table_name='t2';
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select * from mysql.index_stats where db_name='db2' and table_name='t2';
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use db2;
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--echo #
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--echo # Now, rename within the same database and verify:
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--echo #
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rename table t2 to t3;
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--echo # No stats under old name:
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select * from mysql.table_stats where db_name='db2' and table_name='t2';
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select * from mysql.column_stats where db_name='db2' and table_name='t2';
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select * from mysql.index_stats where db_name='db2' and table_name='t2';
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--echo # Stats under the new name:
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select * from mysql.table_stats where db_name='db2' and table_name='t3';
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select * from mysql.column_stats where db_name='db2' and table_name='t3';
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select * from mysql.index_stats where db_name='db2' and table_name='t3';
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use test;
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drop database db1;
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drop database db2;
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drop table t1;
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--echo #
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--echo # MDEV-16552: [10.0] ASAN global-buffer-overflow in is_stat_table / statistics_for_tables_is_needed
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--echo #
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SET use_stat_tables = PREFERABLY;
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SELECT CONVERT_TZ( '1991-09-20 10:11:02', '+00:00', 'GMT' );
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set use_stat_tables=@save_use_stat_tables;
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--echo #
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--echo # MDEV-16757: manual addition of min/max statistics for BLOB
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--echo #
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SET use_stat_tables= PREFERABLY;
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CREATE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
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INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
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ANALYZE TABLE t1;
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--sorted_result
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SELECT * FROM mysql.column_stats;
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DELETE FROM mysql.column_stats
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WHERE db_name='test' AND table_name='t1' AND column_name='t';
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INSERT INTO mysql.column_stats VALUES
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('test','t1','t','bar','foo', 0.0, 3.0, 1.0, 0, NULL, NULL);
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--sorted_result
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SELECT * FROM mysql.column_stats;
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SELECT pk FROM t1;
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DROP TABLE t1;
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set use_stat_tables=@save_use_stat_tables;
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--echo #
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--echo # MDEV-16760: CREATE OR REPLACE TABLE after ANALYZE TABLE
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--echo #
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SET use_stat_tables= PREFERABLY;
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CREATE TABLE t1 (pk int PRIMARY KEY, c varchar(32));
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INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
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ANALYZE TABLE t1;
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SELECT * FROM t1;
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SELECT * FROM mysql.column_stats;
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CREATE OR REPLACE TABLE t1 (pk int PRIMARY KEY, a char(7));
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SELECT * FROM t1;
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SELECT * FROM mysql.column_stats;
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DROP TABLE t1;
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set use_stat_tables=@save_use_stat_tables;
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--echo #
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--echo # MDEV-17023: Crash during read_histogram_for_table with optimizer_use_condition_selectivity set to 4
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--echo #
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set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
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set @@optimizer_use_condition_selectivity=4;
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set @@use_stat_tables= PREFERABLY;
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explain
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SELECT * FROM INFORMATION_SCHEMA.PROFILING, mysql.user;
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set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
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set use_stat_tables=@save_use_stat_tables;
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--echo #
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--echo # MDEV-17734: AddressSanitizer: use-after-poison in create_key_parts_for_pseudo_indexes
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--echo #
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set @@use_stat_tables= PREFERABLY;
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set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
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set @@optimizer_use_condition_selectivity=4;
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set @save_use_stat_tables= @@use_stat_tables;
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create table t1 (a int, b int);
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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);
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analyze table t1 persistent for columns (a) indexes ();
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select * from t1 where a=1 and b=3;
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set @@optimizer_use_condition_selectivity= @save_optimizer_use_condition_selectivity;
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set use_stat_tables=@save_use_stat_tables;
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drop table t1;
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--echo #
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--echo # MDEV-16711:CREATE OR REPLACE TABLE introducing BLOB column
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--echo #
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SET use_stat_tables= PREFERABLY;
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CREATE TABLE t1 (pk INT PRIMARY KEY, t CHAR(60));
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INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
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ANALYZE TABLE t1;
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CREATE OR REPLACE TABLE t1 (pk INT PRIMARY KEY, t TEXT);
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SELECT MAX(pk) FROM t1;
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DROP TABLE t1;
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set use_stat_tables=@save_use_stat_tables;
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--echo #
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--echo # MDEV-17605: SHOW INDEXES with use_stat_tables='preferably'
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--echo #
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set use_stat_tables='preferably';
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CREATE DATABASE dbt3_s001;
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use dbt3_s001;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='extended_keys=off';
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--disable_query_log
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--disable_result_log
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--disable_warnings
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--source include/dbt3_s001.inc
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create index i_p_retailprice on part(p_retailprice);
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delete from mysql.table_stats;
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delete from mysql.column_stats;
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delete from mysql.index_stats;
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ANALYZE TABLE lineitem;
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FLUSH TABLE mysql.table_stats, mysql.index_stats;
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--enable_warnings
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--enable_result_log
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--enable_query_log
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select * from mysql.table_stats;
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select * from mysql.index_stats;
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SHOW INDEXES FROM lineitem;
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SELECT * FROM INFORMATION_SCHEMA.STATISTICS WHERE table_name='lineitem';
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SELECT
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COUNT(DISTINCT l_orderkey), COUNT(DISTINCT l_orderkey,l_linenumber),
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COUNT(DISTINCT l_shipDATE),
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COUNT(DISTINCT l_partkey), COUNT(DISTINCT l_partkey,l_suppkey),
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COUNT(DISTINCT l_suppkey), COUNT(DISTINCT l_receiptDATE),
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COUNT(DISTINCT l_orderkey, l_quantity), COUNT(DISTINCT l_commitDATE)
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FROM lineitem;
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set optimizer_switch=@save_optimizer_switch;
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DROP DATABASE dbt3_s001;
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USE test;
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delete from mysql.table_stats;
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delete from mysql.column_stats;
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delete from mysql.index_stats;
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--echo #
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--echo # MDEV-19352: Server crash in alloc_histograms_for_table_share upon query from information schema
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--echo #
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use test;
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set @save_optimizer_use_condition_selectivity= @@optimizer_use_condition_selectivity;
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set @@optimizer_use_condition_selectivity= 4;
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set use_stat_tables='preferably';
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CREATE TABLE t1 (a INT);
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CREATE TABLE t2 (b INT);
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CREATE VIEW v AS SELECT * FROM t1 JOIN t2;
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--error ER_NO_SUCH_TABLE
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INSERT INTO t2 SELECT * FROM x;
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|
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 #
|