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help / color / mirror / Atom feedFrom: Tatsuo Ishii <[email protected]>
To: [email protected]
Cc: [email protected]
Cc: [email protected]
Subject: Re: pgsql: Add memory/disk usage for Window aggregate nodes in EXPLAIN.
Date: Tue, 01 Apr 2025 09:48:24 +0900 (JST)
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAApHDvoOHfFYXUryAymxiZjvyvhEt0ueeBOJRUOJWn1W7e3eyA@mail.gmail.com>
References: <CAApHDvoZ4TeT2bSEaN+Nx94R0neBr1mmyDBx0Z5ZQXVUunu7JQ@mail.gmail.com>
<[email protected]>
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From: David Rowley <[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>
> 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,
Christoph,
Thank you for fixing this!
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp
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