Re: multivariate statistics / patch v7

Michael Paquier <michael.paquier@gmail.com>

From: Michael Paquier <michael.paquier@gmail.com>

To: Tomas Vondra <tomas.vondra@2ndquadrant.com>

Cc: Heikki Linnakangas <hlinnaka@iki.fi>, pgsql-hackers <pgsql-hackers@postgresql.org>, Jeff Janes <jeff.janes@gmail.com>, Stephen Frost <sfrost@snowman.net>, Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>

Date: 2015-08-25T12:36:57Z

Lists: pgsql-hackers

On Fri, Jul 31, 2015 at 6:28 AM, Tomas Vondra
<tomas.vondra@2ndquadrant.com> wrote:
> [series of arguments]
>
> If you need stats without these "issues" you'll have to use MCV list or a
> histogram. Trying to fix the simple statistics types is futile, IMHO.

Patch is marked as returned with feedback. There has been advanced
discussions and reviews as well.
-- 
Michael

Commits

Collect and use multi-column dependency stats
- 2686ee1b7ccf 10.0 landed
Implement SortSupport for macaddr data type
- f90d23d0c518 10.0 cited
Implement multivariate n-distinct coefficients
- 7b504eb282ca 10.0 landed
Generate fmgr prototypes automatically
- 352a24a1f9d6 10.0 cited