Manual:$wgLogQueries

Debug: $wgLogQueries
Enable logging of inquiries; requires Extension AskSql
Introduced in version:pre 1.1.0
Removed in version:1.16.0
Allowed values:(boolean)
Default value:false

Details edit

Not used in MediaWiki core code. Set false in DefaultSettings.php; used by Extension:Asksql to enable logging of enquiries.