One thing that you could do instead of using a cron is to use database triggers; something like: CREATE TRIGGER delete_blacklist_rows_trigger AFTER SELECT ON blacklist EXECUTE FUNCTION delete_expired_rows();
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One thing that you could do instead of using a cron is to use database triggers; something like:
CREATE TRIGGER delete_blacklist_rows_trigger AFTER SELECT ON blacklist EXECUTE FUNCTION delete_expired_rows();