You may need to ask Tableau Support to help, but you should also consider looking at database tracing. You didn't mention which database you were using. There are several tools which can do this depending on database.
Why are you looking for this information? If it's performance related then consider using performance tracing (see: http://onlinehelp.tableausoftware.com/current/server/en-us/help.htm#perf_record_create_server.htm?Highlight=performance)