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From: Andres Freund <[email protected]>
To: Amit Langote <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Jacob Champion <[email protected]>
Cc: David Rowley <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: generic plans and "initial" pruning
Date: Tue, 7 Feb 2023 10:08:55 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <CA+HiwqGe0W2C+SrKcxrk-r4JjO0sCfL581p1M2bzr_LSrzGn+g@mail.gmail.com>
References: <[email protected]>
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	<CA+HiwqGe0W2C+SrKcxrk-r4JjO0sCfL581p1M2bzr_LSrzGn+g@mail.gmail.com>

Hi,

On 2023-02-03 22:01:09 +0900, Amit Langote wrote:
> I've added a test case under src/modules/delay_execution by adding a
> new ExecutorStart_hook that works similarly as
> delay_execution_planner().  The test works by allowing a concurrent
> session to drop an object being referenced in a cached plan being
> initialized while the ExecutorStart_hook waits to get an advisory
> lock.  The concurrent drop of the referenced object is detected during
> ExecInitNode() and thus triggers replanning of the cached plan.
> 
> I also fixed a bug in the ExplainExecuteQuery() while testing and some comments.

The tests seem to frequently hang on freebsd:
https://cirrus-ci.com/github/postgresql-cfbot/postgresql/commitfest%2F42%2F3478

Greetings,

Andres Freund






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