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From: David Rowley <[email protected]>
To: Christoph Berg <[email protected]>
Cc: Tatsuo Ishii <[email protected]>
Cc: [email protected]
Subject: Re: pgsql: Add memory/disk usage for Window aggregate nodes in EXPLAIN.
Date: Tue, 1 Apr 2025 11:09:11 +1300
Message-ID: <CAApHDvoOHfFYXUryAymxiZjvyvhEt0ueeBOJRUOJWn1W7e3eyA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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	<CAApHDvoZ4TeT2bSEaN+Nx94R0neBr1mmyDBx0Z5ZQXVUunu7JQ@mail.gmail.com>
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On Tue, 1 Apr 2025 at 09:40, Christoph Berg <[email protected]> wrote:
> =# explain (analyze,buffers off,costs off) select sum(n) over() from generate_series(1,2048) a(n);
>                                         QUERY PLAN
> ──────────────────────────────────────────────────────────────────────────────────────────
>  WindowAgg (actual time=2.073..2.686 rows=2048.00 loops=1)
>    Window: w1 AS ()
>    Storage: Disk  Maximum Storage: 65kB

Thank you for testing that. I've just pushed a patch to bump it up to 2500.

I suspect the buildfarm didn't catch this due to the tuplestore
consuming enough memory in MEMORY_CONTEXT_CHECKING builds.

David


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