SET GLOBAL SLOW_QUERY_LOG=ON;
SELECT sleep(1);
sleep(1)
0
SELECT sleep(3);
sleep(3)
0
SELECT sleep(5);
sleep(5)
0
set long_query_time=4;
SELECT sleep(1);
sleep(1)
0
SELECT sleep(3);
sleep(3)
0
SELECT sleep(5);
sleep(5)
0
set long_query_time=2;
SET GLOBAL SLOW_QUERY_LOG=OFF;
FLUSH LOGS;
3
