mysql> select @@long_query_time;
+-------------------+
| @@long_query_time |
+-------------------+
|          2.000000 |
+-------------------+
1 row in set (0.00 sec)

mysql> select @@log_queries_not_using_indexes
    -> ;
+---------------------------------+
| @@log_queries_not_using_indexes |
+---------------------------------+
|                               0 |
+---------------------------------+
1 row in set (0.00 sec)

# Query_time: 1.000111  Lock_time: 0.000000 Rows_sent: 1  Rows_examined: 0 SET timestamp=1559116596; select sleep(1);