Horton

Re: [PERFORM] Slow query: bitmap scan troubles

Jeff Janes <jeff.janes@gmail.com>

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From: Jeff Janes <jeff.janes@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2012-12-19T14:40:54Z
Lists: pgsql-hackers, pgsql-performance 
On Tue, Dec 18, 2012 at 5:05 PM, Jeff Janes <jeff.janes@gmail.com> wrote:

Sorry for the malformed and duplicate post.  I was not trying to be
emphatic; I was testing out gmail offline.  Clearly the test didn't go
too well.

Jeff

Commits

  1. Tweak genericcostestimate's fudge factor for index size.

  2. Tweak index costing for problems with partial indexes.