Symphony.

Some queries are missing from the internal logger in class.mysql.php. The total is often higher than the number of queries printed out using ->debug('queries').

Sussed! Line 263 of class.mysql.php builds a unique hash for the query by hashing the current time. If two of the same query are fired one after the other, within a fraction of a second, this hash will be identical so only one will be logged.

Fixed by using microtime() instead:

$query_hash = md5($query.microtime());

Pull requested http://github.com/nickdunn/symphony-2/commit/7db0555d022b575ae56cde04a038d0f30d0b9ec5