Re: Some optimizations for COALESCE expressions during constant folding

Richard Guo <guofenglinux@gmail.com>

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From: Richard Guo <guofenglinux@gmail.com>

To: Matheus Alcantara <matheusssilv97@gmail.com>

Cc: David Rowley <dgrowleyml@gmail.com>, Pg Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-12-12T02:17:07Z

Lists: pgsql-hackers

Attachments

v5-0001-Simplify-COALESCE-expressions-using-non-nullable-.patch (application/octet-stream)
v5-0002-Optimize-ROW-.-IS-NOT-NULL-using-non-nullable-fie.patch (application/octet-stream)
v5-0003-Teach-expr_is_nonnullable-to-handle-more-expressi.patch (application/octet-stream)

On Thu, Dec 11, 2025 at 11:54 PM Matheus Alcantara
<matheusssilv97@gmail.com> wrote:
> I think that this patch needs a rebase due to the changes on
> predicate.sql introduced by c925ad30b04.

Right.  Here it is.

- Richard