Re: allow partial union-all and improve parallel subquery costing - Mailing list pgsql-hackers

From Luc Vlaming
Subject Re: allow partial union-all and improve parallel subquery costing
Date
Msg-id a29ac7ff-0008-f2c1-1b35-7ec578cbc854@swarm64.com
Whole thread Raw
In response to allow partial union-all and improve parallel subquery costing  (Luc Vlaming <luc@swarm64.com>)
Responses Re: allow partial union-all and improve parallel subquery costing
List pgsql-hackers
Hi David,

On 15-03-2021 14:09, David Steele wrote:
> Hi Luc,
> 
> On 12/30/20 8:54 AM, Luc Vlaming wrote:
>>>
>>> Created a commitfest entry assuming this is the right thing to do so 
>>> that someone can potentially pick it up during the commitfest.
>>
>> Providing an updated patch based on latest master.
> 
> Looks like you need another rebase: 
> http://cfbot.cputube.org/patch_32_2787.log. Marked as Waiting for Author.
> 
> You may also want to give a more detailed description of what you have 
> done here and why it improves execution plans. This may help draw some 
> reviewers.
> 
> Regards,

Here's an improved and rebased patch. Hope the description helps some 
people. I will resubmit it to the next commitfest.

Regards,
Luc

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