Re: SI-read predicate locks on materialized views

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: Yugo NAGATA <nagata@sraoss.co.jp>
Cc: Dilip Kumar <dilipbalaut@gmail.com>, Richard Guo <guofenglinux@gmail.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2022-12-01T06:48:21Z
Lists: pgsql-hackers
On Tue, Oct 18, 2022 at 05:29:58PM +0900, Yugo NAGATA wrote:
> Thank you for your review. I agree that an isolation test is required.
> The attached patch contains the test using the scenario as explained in
> the previous post.

Cool, thanks.  Sorry for my late reply here.  I have put my head on
that for a few hours and could not see why we should not allow that.
So committed the change after a few tweaks to the tests with the use
of custom permutations, mainly.

While looking at all that, I have looked at the past threads like [1],
just to note that this has never been really mentioned.

[1]: https://www.postgresql.org/message-id/1371225929.28496.YahooMailNeo@web162905.mail.bf1.yahoo.com
--
Michael

Commits

  1. Make materialized views participate in predicate locking