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Fix sporadic failure of set_statement mtr test.

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On Windows with low precision  (10-16 ms) timer used for timing queries,
the statement "set @@long_query_time=0.01" can log itself a slow if it
spawn more single timer tick.

The fix is to filter this query out  from "SELECT FROM mysql.slow_log"
results
This commit is contained in:
Vladislav Vaintroub 2016-06-03 19:22:47 +00:00
parent 1859caf60b
commit 9ff93656ae
2 changed files with 14 additions and 14 deletions
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14
mysql-test/r/set_statement.result
View file

@ -1056,7 +1056,7 @@ set statement slow_query_log=default for select @@slow_query_log;
truncate table mysql.slow_log;
set slow_query_log= 1;
set global log_output='TABLE';
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
set @@long_query_time=0.01;
#should be written
@ -1064,7 +1064,7 @@ select sleep(0.1);
sleep(0.1)
0
set @@long_query_time=@save_long_query_time;
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
select sleep(0.1)
#---
@ -1072,7 +1072,7 @@ select sleep(0.1)
set statement long_query_time=0.01 for select sleep(0.1);
sleep(0.1)
0
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
select sleep(0.1)
set statement long_query_time=0.01 for select sleep(0.1)
@ -1083,7 +1083,7 @@ set statement slow_query_log=0 for select sleep(0.1);
sleep(0.1)
0
set @@long_query_time=@save_long_query_time;
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
select sleep(0.1)
set statement long_query_time=0.01 for select sleep(0.1)
@ -1092,7 +1092,7 @@ set statement long_query_time=0.01 for select sleep(0.1)
set statement long_query_time=0.01,log_slow_filter='full_scan' for select sleep(0.1);
sleep(0.1)
0
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
select sleep(0.1)
set statement long_query_time=0.01 for select sleep(0.1)
@ -1101,7 +1101,7 @@ set statement long_query_time=0.01 for select sleep(0.1)
set statement long_query_time=0.01,log_slow_rate_limit=9999 for select sleep(0.1);
sleep(0.1)
0
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
select sleep(0.1)
set statement long_query_time=0.01 for select sleep(0.1)
@ -1110,7 +1110,7 @@ set statement long_query_time=0.01 for select sleep(0.1)
set statement long_query_time=0.01,min_examined_row_limit=50 for select sleep(0.1);
sleep(0.1)
0
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
sql_text
select sleep(0.1)
set statement long_query_time=0.01 for select sleep(0.1)

14
mysql-test/t/set_statement.test
View file

@ -1003,34 +1003,34 @@ truncate table mysql.slow_log;
set slow_query_log= 1;
set global log_output='TABLE';
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
set @@long_query_time=0.01;
--echo #should be written
select sleep(0.1);
set @@long_query_time=@save_long_query_time;
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
--echo #---
--echo #should be written
set statement long_query_time=0.01 for select sleep(0.1);
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
--echo #---
set @@long_query_time=0.01;
--echo #should NOT be written
set statement slow_query_log=0 for select sleep(0.1);
set @@long_query_time=@save_long_query_time;
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
--echo #---
--echo #should NOT be written
set statement long_query_time=0.01,log_slow_filter='full_scan' for select sleep(0.1);
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
--echo #---
--echo #should NOT be written
set statement long_query_time=0.01,log_slow_rate_limit=9999 for select sleep(0.1);
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
--echo #---
--echo #should NOT be written
set statement long_query_time=0.01,min_examined_row_limit=50 for select sleep(0.1);
select sql_text from mysql.slow_log;
select sql_text from mysql.slow_log where sql_text not like 'set @@long_query_time%';
--echo #---
#
# log_slow_verbosity is impossible to check because results are not written