On Thursday 18 November 2010 17:48:43 Marko Tiikkaja wrote: > On 2010-11-18 6:44 PM +0200, Andres Freund wrote: > > On Thursday 18 November 2010 16:45:23 Marko Tiikkaja wrote: > >> Here's a patch for showing in EXPLAIN ANALYZE the number of rows a plan > > > >> qual filtered from a node's input. The output looks like this: > > If it supports the same for index-scans I *really* like it and even > > proposed a patch earlier (4a16a8af.2080...@anarazel.de) > > I still find myself constantly wishing to have something like that... > > Especially when wondering if it might be worthwile to add another column > > (which is implemented as an additional qual atm) should get included in a > > multiicolumn index. > > > > It was shot down at the time because it might break some explain-parsers > > expectations. Imho that argument is less valid these days. > > I have to admit, I didn't query the archives before looking at this. I > guess I should have. This patch supports all Scan nodes, and I think > that's the right thing to do. Uh. No worries. That was my first pg-patch, I doubt it was well-done ;-)
> I agree 100% that breaking the parseability (is that a word?) of the > EXPLAIN output is not really an argument these days, so we might want to > give this some thought. Yes. Andres -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
