Re: multivariate statistics v14

David Steele <david@pgmasters.net>

From: David Steele <david@pgmasters.net>

To: Tomas Vondra <tomas.vondra@2ndquadrant.com>, Tatsuo Ishii <ishii@postgresql.org>

Cc: tgl@sss.pgh.pa.us, alvherre@2ndquadrant.com, petr@2ndquadrant.com, jeff.janes@gmail.com, pgsql-hackers@postgresql.org

Date: 2016-03-29T15:18:01Z

Lists: pgsql-hackers

Hi Tomas,

On 3/28/16 4:42 AM, Tomas Vondra wrote:

> Yes, those are valid omissions. I plan to address them, and I'd also
> considering adding a section to 65.1 (How the Planner Uses Statistics),
> explaining more thoroughly how the planner uses multivariate stats.

It looks you need post a new patch so I have marked this "waiting on 
author".

Thanks,
-- 
-David
david@pgmasters.net

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