Re: Foreign Join pushdowns not working properly for outer joins

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>
Cc: Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Foreign Join pushdowns not working properly for outer joins
Date: 2017-04-26 13:31:16
Message-ID: df4816ce-9680-0ff8-66a4-17750aba2da3@2ndquadrant.com
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On 4/26/17 04:32, David Rowley wrote:
>> For backpatching to 9.6, I came up with the attached reduced version.
>> Since we don't have add_foreign_grouping_paths() in 9.6, we can omit the
>> refactoring and keep the changes much simpler. Does that make sense?
>
> That makes sense to me. It fixes the reported issue and is less
> invasive than the pg10 patch.

committed

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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