Re: [HACKERS] Foreign Join pushdowns not working properly for outerjoins - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: [HACKERS] Foreign Join pushdowns not working properly for outerjoins
Date
Msg-id 44f9ddb3-ff76-830b-dfb5-c7bfe1b8e3c3@2ndquadrant.com
Whole thread Raw
In response to Re: [HACKERS] Foreign Join pushdowns not working properly for outerjoins  (Peter Eisentraut <peter.eisentraut@2ndquadrant.com>)
Responses Re: [HACKERS] Foreign Join pushdowns not working properly for outer joins  (Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>)
Re: [HACKERS] Foreign Join pushdowns not working properly for outer joins  (David Rowley <david.rowley@2ndquadrant.com>)
List pgsql-hackers
On 4/24/17 22:50, Peter Eisentraut wrote:
> On 4/14/17 00:24, Ashutosh Bapat wrote:
>> This looks better. Here are patches for master and 9.6.
>> Since join pushdown was supported in 9.6 the patch should be
>> backported to 9.6 as well. Attached is the patch (_96) for 9.6,
>> created by rebasing on 9.6 branch and removing conflict. _v6 is
>> applicable on master.
> 
> Committed to PG10.  I'll work on backpatching next.

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?

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

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