Re: multivariate statistics v14
Tomas Vondra <tomas.vondra@2ndquadrant.com>
From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Robert Haas <robertmhaas@gmail.com>, David Steele <david@pgmasters.net>
Cc: Tatsuo Ishii <ishii@postgresql.org>, Tom Lane <tgl@sss.pgh.pa.us>, Álvaro Herrera <alvherre@2ndquadrant.com>, Petr Jelinek <petr@2ndquadrant.com>, Jeff Janes <jeff.janes@gmail.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2016-04-08T18:55:24Z
Lists: pgsql-hackers
On 04/08/2016 05:55 PM, Robert Haas wrote: > On Tue, Mar 29, 2016 at 11:18 AM, David Steele <david@pgmasters.net> wrote: >> 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". > > Since no new version of this patch has been posted in the last 10 > days, it seems clear that there will not be time for this to > reasonably become ready for committer and then get committed in the > few hours remaining before the deadline. That is a bummer, since I > was hoping we would have this feature in this release, but hopefully > we will get it into 9.7. I am marking it Returned with Feedback. > Well, me to. But my feeling is the patch received entirely insufficient amount of thorough code review, considering how important part of the code it touches. I agree docs are an important part of a patch, but polishing user-level docs would hardly move the patch closer to being committable (especially when there's ~50kB of READMEs). regards -- Tomas Vondra http://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
Commits
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Collect and use multi-column dependency stats
- 2686ee1b7ccf 10.0 landed
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Implement SortSupport for macaddr data type
- f90d23d0c518 10.0 cited
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Implement multivariate n-distinct coefficients
- 7b504eb282ca 10.0 landed
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Generate fmgr prototypes automatically
- 352a24a1f9d6 10.0 cited