On 18 March 2013 19:02, Jeff Davis <pg...@j-davis.com> wrote: > On Sun, 2013-03-17 at 22:26 -0700, Daniel Farina wrote: >> as long as I am able to turn them off easily > > To be clear: you don't get the performance back by doing > "ignore_checksum_failure = on". You only get around the error itself, > which allows you to dump/reload the good data.
Given that the worst pain point comes from setting hint bits during a large SELECT, it makes sense to offer an option to simply skip hint bit setting when we are reading data (SELECT, not INSERT/UPDATE/DELETE). That seems like a useful option even without checksums. I know I have seen cases across many releases where setting that would have been good, since it puts the cleanup back onto VACUUM/writers, rather than occasional SELECTs. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
