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Current File : /usr/local/mysql/mysql-test/main/stat_tables_flush.test
--source include/have_sequence.inc

--echo #
--echo # Check that ANALYZE TABLE is remembered by MyISAM and Aria
--echo #

create table t1 (a int) engine=myisam;
insert into t1 select seq from seq_0_to_99;
analyze table t1 persistent for all;
flush tables;
analyze table t1 persistent for all;
update t1 set a=100 where a=1;
analyze table t1 persistent for all;
update t1 set a=100 where a=2;
flush tables;
analyze table t1 persistent for all;

--echo # Aria transactional=0
ALTER TABLE t1 ENGINE=aria transactional=0;
analyze table t1 persistent for all;
update t1 set a=100 where a=10;
analyze table t1 persistent for all;
analyze table t1 persistent for all;
flush tables;
analyze table t1 persistent for all;
update t1 set a=100 where a=11;
analyze table t1 persistent for all;
update t1 set a=100 where a=12;
flush tables;
analyze table t1 persistent for all;

--echo # Aria transactional=1

ALTER TABLE t1 ENGINE=aria transactional=1;
analyze table t1 persistent for all;
update t1 set a=100 where a=20;
analyze table t1 persistent for all;
analyze table t1 persistent for all;
flush tables;
analyze table t1 persistent for all;
update t1 set a=100 where a=21;
analyze table t1 persistent for all;
update t1 set a=100 where a=22;
flush tables;
analyze table t1 persistent for all;
drop table t1;

--echo #
--echo # Test that histograms are read after flush
--echo #

create table t1 (a int);
insert into t1 select seq from seq_1_to_10;

insert into t1 select A.seq from seq_10_to_20 A, seq_1_to_9 B;
analyze table t1 persistent for all;

explain format=json select * from t1 where a between 2 and 5;
explain format=json select * from t1 where a between 12 and 15;

flush tables;
set @@optimizer_use_condition_selectivity=3;
explain format=json select * from t1 where a between 2 and 5;
set @@optimizer_use_condition_selectivity=4;
explain format=json select * from t1 where a between 2 and 5;

drop table t1;
set @@optimizer_use_condition_selectivity=default;

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

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