sqlite: unauthorized information access

You do have a point in there.

On the other hand SQLite (don't think it's in the SQL standard) has the VACUUM command for that kind of situations. No need to use a specific SQLite compile option, which will incur in a small performance loss for everybody using the same library.

But I accept that VACUUM is not something you want to do every time (or set the "auto-vacumm" flag).