Audit Table storage for Primary Key(s)

Hi, I've created a Audit table which tracks any changed fields for multiple tables. In my Audit table I'm using a UUID for the primary key. However I need to have a reference back to the primary key(s) of the table audited. At the moment I've a VARCHAR field which stores primary keys like 1

RE: Are There Slow Queries that Don't Show in the Slow Query Logs?

Hi, No, it does not represents the time from request to response not does it includes the time that is spent in waiting for the locks to be released. The slow query log consists of SQL statements that took more than long_query_time seconds to EXECUTE. The default value of long_query_time is 10.