On Fri, Jan 13, 2012 at 16:21, Robert Haas <robertmh...@gmail.com> wrote: > I think that people who are using index-only scans are going to want > some way to find out the degree to which the scans are in fact > index-only. > > So here's a 5-line patch that adds the number of heap fetches to the > EXPLAIN ANALYZE output. This might not be all the instrumentation > we'll ever want here, but I think we at least want this much.
Agreed. Would also be good to have counter sin pg_stat_* for this, since you'd usually want to look at this kind of data over time as well. In your plans? ;) -- Magnus Hagander Me: http://www.hagander.net/ Work: http://www.redpill-linpro.com/ -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers