Question

Is a way to prevent a single query from appearing in mysql slow query log?

One may actually disable logging before executing the query (by setting a global variable) and enable it back after the query, but this would prevent logging in other threads as well, which is not desirable.

Do you have any ideas?

Answer 1

In MySQL 5.1 and later, you can make runtime changes to the time threshold for which queries are logged in the slow query log. Set it to something ridiculously high and the query is not likely to be logged.

SET SESSION long_query_time = 20000;
SELECT ...whatever...
SET SESSION long_query_time = 2;

Assuming 2 is the normal threshold you use.