"Bruno Baguette" <pgsql-ml@xxxxxxxxxxxx> wrote > > > Is there a way to log all SQL queries, with the date/time when they were > launched, and the cost of that query (if this is possible) in order to see > which queries need to be optimized ? > See if log_statement, log_statement_stats parameters can help you. Also, EXPLAIN ANALYZE can help you more on the target query. Regards, Qingqing