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From: Tom Lane <[email protected]>
To: Bertrand Mamasam <[email protected]>
Cc: [email protected]
Subject: Re: ERROR wrong varnullingrels (b 3) (expected (b)) with LEFT JOIN LATERAL and CTE
Date: Thu, 28 Nov 2024 13:51:02 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <CACZ67_ULS3HExOnRou1SXZZMzcAA2fE_WF3pzaFDEDW9v3ACMQ@mail.gmail.com>
References: <CACZ67_UA_EVrqiFXJu9XK50baEpH=ofEPJswa2kFxg6xuSw-ww@mail.gmail.com>
	<[email protected]>
	<CACZ67_ULS3HExOnRou1SXZZMzcAA2fE_WF3pzaFDEDW9v3ACMQ@mail.gmail.com>

Bertrand Mamasam <[email protected]> writes:
> Ok thank you, here is a short version of the query that works before 16.5
> but not in 16.5+ anymore.

Thanks for the test case!  A quick "git bisect" says I broke it at

cb8e50a4a09fe541e32cd54ea90a97f2924121a1 is the first bad commit
commit cb8e50a4a09fe541e32cd54ea90a97f2924121a1
Author: Tom Lane <[email protected]>
Date:   Fri Aug 30 12:42:12 2024 -0400

    Avoid inserting PlaceHolderVars in cases where pre-v16 PG did not.

Apparently that change was less safe than I thought.  Looking ...

			regards, tom lane

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