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Re: ERROR wrong varnullingrels (b 3) (expected (b)) with LEFT JOIN LATERAL and CTE - Mailing list pgsql-general

From Tom Lane
Subject Re: ERROR wrong varnullingrels (b 3) (expected (b)) with LEFT JOIN LATERAL and CTE
Date
Msg-id 23000.1732819862@sss.pgh.pa.us
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In response to Re: ERROR wrong varnullingrels (b 3) (expected (b)) with LEFT JOIN LATERAL and CTE  (Bertrand Mamasam <golgote@gmail.com>)
Responses Re: ERROR wrong varnullingrels (b 3) (expected (b)) with LEFT JOIN LATERAL and CTE
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Bertrand Mamasam <golgote@gmail.com> 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 <tgl@sss.pgh.pa.us>
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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