Re: [PATCH] Incremental sort

From: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
To: David Steele <david(at)pgmasters(dot)net>
Cc: James Coleman <jtc331(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Rafia Sabih <rafia(dot)pghackers(at)gmail(dot)com>, Peter Geoghegan <pg(at)bowt(dot)ie>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Shaun Thomas <shaun(dot)thomas(at)2ndquadrant(dot)com>, Dmitry Dolgov <9erthalion6(at)gmail(dot)com>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
Subject: Re: [PATCH] Incremental sort
Date: 2020-03-03 18:43:25
Message-ID: 20200303184325.pad3gtxhe5egzck4@development
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On Tue, Mar 03, 2020 at 12:17:22PM -0500, David Steele wrote:
>James and Tomas,
>
>On 1/21/20 10:03 AM, James Coleman wrote:
>>On Tue, Jan 21, 2020 at 9:58 AM Tomas Vondra
>><tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
>>>
>>>On Tue, Jan 21, 2020 at 09:37:01AM -0500, James Coleman wrote:
>>>>On Tue, Jan 21, 2020 at 9:25 AM Tomas Vondra
>>>><tomas(dot)vondra(at)2ndquadrant(dot)com> wrote:
>>>>>
>>>>>Hi,
>>>>>
>>>>>This patch has been marked as WoA since end of November, and there has
>>>>>been no discussion/reviews since then :-( Based on off-list discussion
>>>>>with James I don't think that's going to change in this CF, so I'll move
>>>>>it to the next CF.
>>>>>
>>>>>I plan to work on the planner part of this patch before 2020-03, with
>>>>>the hope it can still make it into 13.
>>>>
>>>>In that off-list discussion I'd mentioned to Tomas that I would still
>>>>like to work on this, just my other responsibilities at work have left
>>>>me little time to work on the most important remaining part of this
>>>>(the planner parts) since that requires a fair amount of focus and
>>>>time.
>>>>
>>>>That being said, the patch also needs some more work on improving
>>>>EXPLAIN ANALYZE output (perhaps min/max/mean or median of
>>>>memory usage number of groups in each sort mode), and I think it's far
>>>>more feasible that I can tackle that piecemeal before the next CF.
>>>>
>>>
>>>Sure, sorry if that was not clear from my message - you're of course
>>>more than welcome to continue working on this. My understanding is that
>>>won't happen by the end of this CF, hence the move to 2020-03.
>>
>>Oh, yeah, I probably didn't word that reply well -- I just wanted to
>>add some additional detail to what you had already said.
>>
>>Thanks for your work on this!
>
>It doesn't look there has been much movement on this patch for the
>last few CFs. Are one or both of you planning to work on this for
>v13? Or should we mark it for v14 and/or move it to the next CF.
>

I'm currently working on it, I plan to submit a new patch version
shortly - hopefully by the end of this week.

regards

--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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