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Re: pgsql: Teach expr_is_nonnullable() to handle more expression types - Mailing list pgsql-hackers

From Richard Guo
Subject Re: pgsql: Teach expr_is_nonnullable() to handle more expression types
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Msg-id CAMbWs49b6UzqYSN1gC4nCkRSHdJD+F5hQuadF1RueDdVhgHN1g@mail.gmail.com
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In response to Re: pgsql: Teach expr_is_nonnullable() to handle more expression types  (Robert Haas <robertmhaas@gmail.com>)
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On Thu, Oct 8, 2026 at 10:49 PM Robert Haas <robertmhaas@gmail.com> wrote:
> But I'd be inclined to use a conditional rule only if
> we can base it on information that we already have cached in some
> planner data structure, and not if we'd have to look it up in the
> catalog.

We don't have that cached, so I've pushed a fix that just removes the
case.  It also moves the relkind test ahead of has_subclass().

- Richard

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