EVOLUTION-MANAGER

Edit File: log_slow.test

#
# Testing of slow log query options
#

select @@log_slow_filter;
select @@log_slow_rate_limit;
select @@log_slow_verbosity;
show variables like "log_slow%";
set @org_slow_query_log= @@global.slow_query_log;

# Some simple test to set log_slow_filter
set @@log_slow_filter= "filesort,filesort_on_disk,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk,admin";
select @@log_slow_filter;
set @@log_slow_filter="admin,admin";
select @@log_slow_filter;
set @@log_slow_filter=7;
select @@log_slow_filter;

# Test of wrong values
--error 1231
set @@log_slow_filter= "filesort,impossible,impossible2,admin";
--error 1231
set @@log_slow_filter= "filesort, admin";
--error 1231
set @@log_slow_filter= 1<<31;
select @@log_slow_filter;

# Some simple test to set log_slow_verbosity
set @@log_slow_verbosity= "query_plan,innodb";
select @@log_slow_verbosity;
set @@log_slow_verbosity=1;
select @@log_slow_verbosity;

#
# Check which fields are in slow_log table
#

show fields from mysql.slow_log;

#
# Check flush command
#

flush slow logs;

# MDEV-4206 (empty filter should be no filter)
set long_query_time=0.1;
set log_slow_filter='';
set global slow_query_log=1;
set global log_output='TABLE';
select sleep(0.5);
select count(*) FROM mysql.slow_log;

# Reset used variables
set @@long_query_time=default;
set global slow_query_log= @org_slow_query_log;
set @@log_slow_filter=default;
set @@log_slow_verbosity=default;
set global log_output= default;
truncate mysql.slow_log;

--echo #
--echo # MDEV-18333 Slow_queries count doesn't increase when slow_query_log is turned off
--echo #

SET SESSION slow_query_log=OFF;
SET GLOBAL slow_query_log=OFF;
SET long_query_time=0.1;

--echo # Although this query is disallowed by slow_query_log, it should still increment Slow_queries

SELECT VARIABLE_VALUE INTO @global_slow_queries
  FROM INFORMATION_SCHEMA.GLOBAL_STATUS
  WHERE VARIABLE_NAME='SLOW_QUERIES';
SELECT sleep(0.2) INTO @tmp FROM DUAL;
SELECT
    CAST(VARIABLE_VALUE AS UNSIGNED)-@global_slow_queries AS Slow_queries_increment
  FROM
    INFORMATION_SCHEMA.GLOBAL_STATUS
  WHERE
    VARIABLE_NAME='SLOW_QUERIES';

--echo # Although this query is disallowed by log_slow_filter, it should still increment Slow_queries

SET log_slow_filter=filesort;
SELECT sleep(0.2) INTO @tmp FROM DUAL;
SELECT VARIABLE_VALUE INTO @global_slow_queries
  FROM INFORMATION_SCHEMA.GLOBAL_STATUS
  WHERE VARIABLE_NAME='SLOW_QUERIES';
SELECT sleep(0.2) INTO @tmp FROM DUAL;
SELECT
    CAST(VARIABLE_VALUE AS UNSIGNED)-@global_slow_queries AS Slow_queries_increment
  FROM
    INFORMATION_SCHEMA.GLOBAL_STATUS
  WHERE
    VARIABLE_NAME='SLOW_QUERIES';
SET log_slow_filter=DEFAULT;

SET @@long_query_time=default;
SET GLOBAL slow_query_log= @org_slow_query_log;