Hacking MySQL table logs
by Giuseppe Maxia
Shortly before MySQL Users Conference I announced that I would be cover new ground in table logs management.
I am keeping that promise, and in addition I am also showing some related hacks.
The announced facts from last year usability report were that you can't change log tables at will, as you can do with log files, and you can't change the log table engine to FEDERATED. Both claims, as it turned out, were incorrect. You can do such things, albeit not in a straightforward manner. As a bonus side effect, you can also:
- add triggers to log tables;
- filter log tables depending on user defined criteria, such as query type, user database, or time;
- centralize logs from several servers.