Horton

Re: Considering fractional paths in Append node

Nikita Malakhov <hukutoc@gmail.com>

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From: Nikita Malakhov <hukutoc@gmail.com>
To: Andrei Lepikhov <lepihov@gmail.com>
Cc: Andy Fan <zhihuifan1213@163.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, Tom Lane <tgl@sss.pgh.pa.us>, David Rowley <dgrowleyml@gmail.com>
Date: 2024-10-18T15:40:06Z
Lists: pgsql-hackers

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  1. Teach Append to consider tuple_fraction when accumulating subpaths.

Hi!

Andy, one quick question - what do you think on using root->limit_tuples as
a guidance on how many
rows we have to consider in plans cost?

-- 
Regards,
Nikita Malakhov
Postgres Professional
The Russian Postgres Company
https://postgrespro.ru/