| From: | Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Push down more full joins in postgres_fdw |
| Date: | 2016-09-09 12:35:45 |
| Message-ID: | c7fa625b-ab02-bec0-275e-9b35b4d8c816@lab.ntt.co.jp |
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| Lists: | pgsql-hackers |
On 2016/09/08 19:51, Etsuro Fujita wrote:
> On 2016/09/06 22:07, Ashutosh Bapat wrote:
>> This patch tries to do two things at a time 1. support join pushdown for
>> FULL join when the joining relations have remote conditions 2. better
>> support for fetching placeholder vars, whole row references and some
>> system columns. To make reviews easy, I think we should split the patch
>> into two 1. supporting subqueries to be deparsed with support for one of
>> the above (I will suggest FULL join support) 2. support for the other.
> OK, will try.
I extracted #1 from the patch. Attached is a patch for that. If that
patch is reasonable, I'll create a patch for #2 on top of it.
Comments welcome!
Best regards,
Etsuro Fujita
| Attachment | Content-Type | Size |
|---|---|---|
| postgres-fdw-more-full-join-pushdown-v3.patch | binary/octet-stream | 82.3 KB |
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