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From: Laurenz Albe <[email protected]>
To: Renan Alves Fonseca <[email protected]>
To: David Rowley <[email protected]>
Cc: Evgeny Morozov <[email protected]>
Cc: pgsql-general <[email protected]>
Subject: Re: Querying one partition in a function takes locks on all partitions
Date: Mon, 31 Mar 2025 19:08:02 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAN_p2QjXkBzyx55QAEGLfvWF0_UdusvxNmTykq_6jQsaaqjwTw@mail.gmail.com>
References: <01020195b987abd3-a008b77d-8c63-4931-80a4-be36a351c8b2-000000@eu-west-1.amazonses.com>
	<CAN_p2Qi_zie4aZqMcYuT-Y5CxyvUJ+nBAomQNJSPbBjrCPEXJw@mail.gmail.com>
	<01020195dd9e8337-c912f36d-54ef-4d3c-a00d-5e697b308d33-000000@eu-west-1.amazonses.com>
	<CAN_p2QghEHKeyTvb6Gc8F3y6wNm+dJXaCdrAnrV7TEq15Oh-pg@mail.gmail.com>
	<CAApHDvp3EDrVhGjmb21bceJ5-Y7iXKOn2UGG3-ngp_9ob_mpLw@mail.gmail.com>
	<CAN_p2QjXkBzyx55QAEGLfvWF0_UdusvxNmTykq_6jQsaaqjwTw@mail.gmail.com>

On Mon, 2025-03-31 at 18:41 +0200, Renan Alves Fonseca wrote:
> I would add another Note below like:
> "Except when inlined, an SQL function is always executed with a
> generic plan. This behavior may not be desired in some situations, and
> it will be fixed in future versions."

But that is not true, as far as I can tell: just like any other prepared
statement, it may keep using custom plans.

Yours,
Laurenz Albe






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