Re: How to prohibit parallel scan through tableam?
Andres Freund <andres@anarazel.de>
From: Andres Freund <andres@anarazel.de>
To: Konstantin Knizhnik <k.knizhnik@postgrespro.ru>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2019-12-03T21:22:17Z
Lists: pgsql-hackers
Hi, On 2019-11-27 14:33:42 +0300, Konstantin Knizhnik wrote: > I wonder how it is possible to prohibit parallel scan for the external > storage accessed through tableam? > For example if I want to implement specialized tableam for fast access to > temp tables, how can I inform optimizer that > parallel scan is not possible (because table data is local to the backend)? I don't think there currently is a good way to do so - but it shouldn't be hard to add that capability. Greetings, Andres Freund