Re: issues with eager aggregation - Mailing list pgsql-hackers

From Robert Haas
Subject Re: issues with eager aggregation
Date
Msg-id CA+TgmoYOXGDDjQV_k9VcPOy45i8tGvTpDvofuhGOLZ0bajZu-A@mail.gmail.com
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In response to Re: issues with eager aggregation  (Richard Guo <guofenglinux@gmail.com>)
Responses Re: issues with eager aggregation
List pgsql-hackers
On Thu, Sep 17, 2026 at 10:58 AM Richard Guo <guofenglinux@gmail.com> wrote:
> As for the division-by-zero case, I agree it's user-visible, but I
> think eager aggregation should follow the same rules as our existing
> transformations, which already evaluate expressions on rows that a
> join removes.

OK, good. So this isn't really doing something that is fundamentally
new, which is what I was fearing. Do you think this section should be
adjusted at all?

https://www.postgresql.org/docs/current/sql-expressions.html#SYNTAX-EXPRESS-EVAL

--
Robert Haas



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