On Mon, Oct 19, 2009 at 4:21 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > marcin mank <marcin.m...@gmail.com> writes: >>> This proposal is just "hints by the back door", ISTM. As Tom says, there is >>> a justification for having it on tablespaces but not on individual tables. > >> If the parameter is defined as "the chance that a page is in cache" >> there is very real physical meaning to it. > > We have no such parameter...
And we want our parameters to be things the DBA has a chance of being able to estimate. How would you come up with sensible figures for this hypothetical parameter? -- greg -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
