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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 global long_query_time=4;
set global slow_query_log_use_global_control='long_query_time';
SELECT sleep(1);
sleep(1)
0
SELECT sleep(3);
sleep(3)
0
SELECT sleep(5);
sleep(5)
0
set global long_query_time=2;
set global slow_query_log_use_global_control='';
SET GLOBAL SLOW_QUERY_LOG=OFF;
FLUSH LOGS;
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show global variables like 'slow_query_log_use_global_control';
Variable_name Value
slow_query_log_use_global_control
set global slow_query_log_use_global_control='long_query_time';
show global variables like 'slow_query_log_use_global_control';
Variable_name Value
slow_query_log_use_global_control long_query_time
set global slow_query_log_use_global_control='log_slow_filter,long_query_time';
show global variables like 'slow_query_log_use_global_control';
Variable_name Value
slow_query_log_use_global_control log_slow_filter,long_query_time
set global slow_query_log_use_global_control='log_slow_filter';
show global variables like 'slow_query_log_use_global_control';
Variable_name Value
slow_query_log_use_global_control log_slow_filter
set global slow_query_log_use_global_control='';
show global variables like 'slow_query_log_use_global_control';
Variable_name Value
slow_query_log_use_global_control
set global slow_query_log_use_global_control='long_query_time';
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