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Re: BUG #19412: Wrong query result with not null constraint - Mailing list pgsql-bugs

From Richard Guo
Subject Re: BUG #19412: Wrong query result with not null constraint
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Msg-id CAMbWs48EjWX7W277X31ogdu4MzqOHbFATZOPqT3obgUS4Aa3sA@mail.gmail.com
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In response to Re: BUG #19412: Wrong query result with not null constraint  (Richard Guo <guofenglinux@gmail.com>)
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On Wed, Feb 18, 2026 at 6:50 PM Richard Guo <guofenglinux@gmail.com> wrote:
> Here is a more readable version of the patch.

Regarding back-patching, I plan to back-patch this all through to v16.
Although the reported case does not seem to cause problems in v16, the
underlying logic error persists.  Leaving incorrect varnullingrels in
the tree seems like a trap for the unwary.

Any thoughts?

- Richard

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