Re: Window Functions: buffering strategy - Mailing list pgsql-hackers

From Hitoshi Harada
Subject Re: Window Functions: buffering strategy
Date
Msg-id e08cc0400810200724x75b02bbfp4800115f0bc6b00e@mail.gmail.com
Whole thread Raw
In response to Re: Window Functions: buffering strategy  (Simon Riggs <simon@2ndQuadrant.com>)
Responses Re: Window Functions: buffering strategy
List pgsql-hackers
Hi,

2008/10/20 Simon Riggs <simon@2ndquadrant.com>:
>
> On Mon, 2008-10-20 at 10:32 +0900, Hitoshi Harada wrote:
>
>> So I propose three Window node buffering strategies,
>> row/frame/partition buffering so as to avoid unnecessary row
>> buffering.
>
> Sounds good from here. Can I suggest you release the code in phases?
>
> It would be better if we got just one of those done (row?), than to
> attempt all 3 and end up with none because of emerging details.

Thank you for your feedback.
Ok, actually the first will be partition buffering, because it covers
all of the functions' requirement. The row buffering is kind of
optimization in the special case.

Regards,

-- 
Hitoshi Harada


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