Horton

Re: Minmax indexes

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Erik Rijkers <er@xs4all.nl>
Cc: Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2013-11-08T20:11:17Z
Lists: pgsql-hackers

Attachments

Erik Rijkers wrote:
> On Thu, September 26, 2013 00:34, Erik Rijkers wrote:
> > On Wed, September 25, 2013 22:34, Alvaro Herrera wrote:
> >
> >> [minmax-5.patch]
> >
> > I have the impression it's not quite working correctly.

Here's a version 7 of the patch, which fixes these bugs and adds
opclasses for a bunch more types (timestamp, timestamptz, date, time,
timetz), courtesy of Martín Marqués.  It's also been rebased to apply
cleanly on top of today's master branch.

I have also added a selectivity function, but I'm not positive that it's
very useful yet.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

Commits

  1. Refactor per-page logic common to all redo routines to a new function.

  2. Reduce use of heavyweight locking inside hash AM.

  3. Scan the buffer pool just once, not once per fork, during relation drop.

  4. Major patch from Thomas Lockhart <Thomas.G.Lockhart@jpl.nasa.gov>