On Wed, Jan 18, 2012 at 7:01 PM, Noah Misch <n...@leadboat.com> wrote: > On Wed, Jan 18, 2012 at 09:46:20AM -0500, Jaime Casanova wrote: >> >> ignoring all non-leaf pages still gives a considerable difference >> between pgstattuple and relation_free_space() > > pgstattuple() counts the single B-tree meta page as always-full, while > relation_free_space() skips it for all purposes. For tiny indexes, that can > shift the percentage dramatically. >
ok, i will reformulate the question. why is fine ignoring non-leaf pages but is not fine to ignore the meta page? -- Jaime Casanova www.2ndQuadrant.com Professional PostgreSQL: Soporte 24x7 y capacitación -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
