Tom Lane wrote: > Magnus Hagander <[EMAIL PROTECTED]> writes: >> Tom Lane wrote: >>> Hmm ... that would almost certainly result in the stats being lost over >>> a system shutdown. How much do we care? > >> Only for those who put it on a ramdrive. The default, unless you >> move/sync it off, would still be the same as it is today. While not >> perfect, the performance difference of going to a ramdrive might easily >> be enough to offset that in some cases, I think. > > Well, what I was wondering about is whether it'd be worth adding logic > to copy the file to/from a "safer" location at startup/shutdown.
Oh, I see. I should think more before I answer sometimes :-) Not sure. I guess my own personal concern would be how badly is autovacuum affected by having to start off a blank set of stats? Any other uses I have I think are capable of dealing with reset-to-zero states. //Magnus -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
