| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> |
| Cc: | Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com> |
| Subject: | Re: Foreign join pushdown vs EvalPlanQual |
| Date: | 2015-11-19 21:57:14 |
| Message-ID: | CA+TgmoZH0PVY4T+Tsactvj6WAjs1G7ECpYM1NMFnTgy2i-Q1zg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Nov 18, 2015 at 10:54 PM, Etsuro Fujita
<fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> wrote:
>> Noted, but let's do it that way and move on. It would be a shame if
>> we didn't end up with a working FDW join pushdown system in 9.6
>> because of a disagreement on this point.
>
> Another idea would be to consider join pushdown as unsupported for now when
> select-for-update is involved in 9.5, as described in [1], and revisit this
> issue when adding join pushdown to postgres_fdw in 9.6.
Well, I think it's probably too late to squeeze this into 9.5 at this
point, but I'm eager to get it fixed for 9.6.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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