Re: Request for Patch Feedback: Lag & Lead Window Functions Can Ignore Nulls

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От Robert Haas
Тема Re: Request for Patch Feedback: Lag & Lead Window Functions Can Ignore Nulls
Дата
Msg-id CA+Tgmob=-+mXmeYE_cAWjfhdWB+GLNScwbXTZR-aC4nWKv0B+Q@mail.gmail.com
обсуждение исходный текст
Ответ на Re: Request for Patch Feedback: Lag & Lead Window Functions Can Ignore Nulls  (Nicholas White <n.j.white@gmail.com>)
Ответы Re: Request for Patch Feedback: Lag & Lead Window Functions Can Ignore Nulls  (Jeff Davis <pgsql@j-davis.com>)
Список pgsql-hackers
Дерево обсуждения 
On Sun, Jun 30, 2013 at 10:07 PM, Nicholas White <n.j.white@gmail.com> wrote:
> I've attached another iteration of the patch that fixes the multiple-window
> bug and adds (& uses) a function to create a Bitmapset using a custom
> allocator. I don't think there's any outstanding problems with it now.

I think the right way to do this is to temporarily set the current
memory context to winobj->winstate->partcontext while creating or
manipulating the Bitmapset and restore it afterwards.  Maybe someone
will say that's a modularity violation, but surely this is worse...

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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