Alvaro Herrera escribió: > So Simon's correct. And perhaps this explains why Jignesh is measuring an improvement on his benchmark. Perhaps an useful experiment would be to turn this behavior off and compare performance. This lack of measurement is probably the cause that the suggested patch to fix it was never applied. The patch is here http://archives.postgresql.org//pgsql-hackers/2004-11/msg00935.php -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance