Also fixed caching issue (reproduced when replaying a query log) SVN:trunk[2485]
SVN:trunk[2484]
SVN:trunk[2472]
The accumulative log data/queries.log can be replayed with test/replay_query_log.php which produces a result file (to check the stability of the results) and a benchmark file (to see the efficiency in CSV) SVN:trunk[2469]