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MDEV-15253: Default optimizer setting changes for MariaDB 10.4

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use_stat_tables= PREFERABLY
optimizer_use_condition_selectivity= 4
This commit is contained in:
Varun Gupta
2018-05-31 15:51:59 +05:30
committed by Varun Gupta
parent a25ce5ab4b
commit 93c360e3a5
248 changed files with 3685 additions and 1747 deletions
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9
mysql-test/main/temp_table_frm.test
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@ -3,6 +3,11 @@
#
# Ensure we don't overflow the internal heap table size in the join
set @save_use_stat_tables= @@use_stat_tables;
set @save_optimizer_use_condition_selectivity=@@optimizer_use_condition_selectivity;
set @@optimizer_use_condition_selectivity=1;
set @@use_stat_tables= NEVER;
set @@session.max_heap_table_size=16*1024*1024;
create table t1 select * from information_schema.session_status where variable_name like 'Opened%';
create temporary table t2 (a int) engine=memory;
@ -13,4 +18,6 @@ let $tmpdir= `select @@tmpdir`;
truncate table t2;
select variable_name, session_status.variable_value - t1.variable_value
from information_schema.session_status join t1 using (variable_name);
drop table t1;
set @@use_stat_tables= @save_use_stat_tables;
set @@optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity;
drop table t1;