| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] Another oddity in handling of WCO constraints in postgres_fdw |
| Date: | 2017-11-29 05:05:44 |
| Message-ID: | CAB7nPqSaWmcNmAHrEXn3ZaJcQ3C0utTGoytfhe7McG69rxHT_g@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Nov 10, 2017 at 8:36 PM, Etsuro Fujita
<fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> wrote:
> For local constraints on foreign tables, it's the user's responsibility to
> ensure that those constraints matches the remote side, so we don't need to
> ensure those constraints locally. But I'm not sure if the same thing
> applies to WCOs on views defined on foreign tables, because in some case
> it's not possible to impose constraints on the remote side that match those
> WCOs, as I explained before.
Moved to CF 2018-01.
--
Michael
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