# test of cases where we can safely disable logging

--source include/have_maria.inc
# can't restart server in embedded
--source include/not_embedded.inc

set global maria_log_file_size=4294967295;

--disable_warnings
drop database if exists mysqltest;
--enable_warnings
create database mysqltest;

connect (admin, localhost, root,,mysqltest,,);
--enable_reconnect

connection default;
use mysqltest;
--enable_reconnect

# checkpoints can make log unrepeatable
let $def_checkinterval=`select @@global.maria_checkpoint_interval`;
set global maria_checkpoint_interval=0;

# Prepare table to help for big load
create table t2 (a varchar(100)) engine=myisam;
insert into t2 select repeat('z',100);
insert into t2 select * from t2;
insert into t2 select * from t2;
insert into t2 select * from t2;
insert into t2 select * from t2;
insert into t2 select * from t2;
insert into t2 select * from t2;

# INSERT SELECT

# no optimization because table not empty

# SHOW ENGINE MARIA LOGS could be influenced by older logs
-- source include/maria_empty_logs.inc
create table t1 (a varchar(100)) engine=maria transactional=1;
show create table t1;
--replace_regex /; .+maria_log/maria_log/
show engine maria logs;

insert into t1 values('a');
insert into t1 select * from t2;
--replace_regex /; .+maria_log/maria_log/
show engine maria logs;

# optimization because table is empty
-- source include/maria_empty_logs.inc
truncate table t1;
insert into t1 select * from t2;
--replace_regex /; .+maria_log/maria_log/
show engine maria logs;

drop table t1;

# same for CREATE SELECT

# no optimization because table not empty
-- source include/maria_empty_logs.inc
create table t1 (a varchar(100)) engine=maria transactional=1;
insert into t1 values('a');
create table if not exists t1 select * from t2;
--replace_regex /; .+maria_log/maria_log/
show engine maria logs;

# optimization because table is empty
-- source include/maria_empty_logs.inc
drop table t1;
create table t1 engine=maria transactional=1 select * from t2;
--replace_regex /; .+maria_log/maria_log/
show engine maria logs;

drop database mysqltest;

--disable_result_log
--disable_query_log
eval set global maria_checkpoint_interval=$def_checkinterval;
--enable_result_log
--enable_query_log
