> -Original Message-
> From: Robert Haas [mailto:robertmh...@gmail.com]
> Sent: Thursday, February 04, 2016 2:54 AM
> To: Kaigai Kouhei(海外 浩平)
> Cc: pgsql-hackers@postgresql.org
> Subject: ##freemail## Re: [HACKERS] CustomScan under the Gather node?
>
> On Thu,
On Thu, Jan 28, 2016 at 8:14 PM, Kouhei Kaigai wrote:
>> total ForeignScandiff
>> 0 workers: 17584.319 ms 17555.904 ms 28.415 ms
>> 1 workers: 18464.476 ms 18110.968 ms 353.508 ms
>> 2 workers: 19042.755 ms 14580.335 ms4462.420
> To: 'Robert Haas'
> Cc: pgsql-hackers@postgresql.org
> Subject: Re: [HACKERS] CustomScan under the Gather node?
>
> > On Tue, Jan 26, 2016 at 1:30 AM, Kouhei Kaigai <kai...@ak.jp.nec.com> wrote:
> > > What enhancement will be necessary to implement similar feature of
On Thu, Jan 28, 2016 at 10:50 AM, Kouhei Kaigai wrote:
>> If I would make a proof-of-concept patch with interface itself, it
>> seems to me file_fdw may be a good candidate for this enhancement.
>> It is not a field for postgres_fdw.
>>
> The attached patch is enhancement of
> On Thu, Jan 28, 2016 at 10:50 AM, Kouhei Kaigai wrote:
> >> If I would make a proof-of-concept patch with interface itself, it
> >> seems to me file_fdw may be a good candidate for this enhancement.
> >> It is not a field for postgres_fdw.
> >>
> > The attached patch is
nuary 29, 2016 8:51 AM
> To: Robert Haas
> Cc: pgsql-hackers@postgresql.org
> Subject: Re: [HACKERS] CustomScan under the Gather node?
>
> > On Thu, Jan 28, 2016 at 10:50 AM, Kouhei Kaigai <kai...@ak.jp.nec.com>
> > wrote:
> > >> If I would make
> On Tue, Jan 26, 2016 at 1:30 AM, Kouhei Kaigai wrote:
> > What enhancement will be necessary to implement similar feature of
> > partial seq-scan using custom-scan interface?
> >
> > It seems to me callbacks on the three points below are needed.
> > * ExecParallelEstimate
On Tue, Jan 26, 2016 at 1:30 AM, Kouhei Kaigai wrote:
> What enhancement will be necessary to implement similar feature of
> partial seq-scan using custom-scan interface?
>
> It seems to me callbacks on the three points below are needed.
> * ExecParallelEstimate
> *
> -Original Message-
> From: Amit Kapila [mailto:amit.kapil...@gmail.com]
> Sent: Wednesday, January 27, 2016 2:30 PM
> To: Kaigai Kouhei(海外 浩平)
> Cc: pgsql-hackers@postgresql.org
> Subject: ##freemail## Re: [HACKERS] CustomScan under the Gather node?
>
> On Tue,
On Tue, Jan 26, 2016 at 12:00 PM, Kouhei Kaigai
wrote:
>
> Hello,
>
> What enhancement will be necessary to implement similar feature of
> partial seq-scan using custom-scan interface?
>
> It seems to me callbacks on the three points below are needed.
> *
Hello,
What enhancement will be necessary to implement similar feature of
partial seq-scan using custom-scan interface?
It seems to me callbacks on the three points below are needed.
* ExecParallelEstimate
* ExecParallelInitializeDSM
* ExecParallelInitializeWorker
Anything else?
Does
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