$cfg->setConfigEntry('file_io_class', 'FileIoHandler');
// CFG: DATABASE-RESULT-CLASS
-$cfg->setConfigEntry('database_result_class', 'DatabaseResult');
+$cfg->setConfigEntry('database_result_class', 'CachedDatabaseResult');
// CFG: FILTER-CHAIN-CLASS
$cfg->setConfigEntry('filter_chain_class', 'FilterChain');