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help / color / mirror / Atom feedFrom: Andrei Lepikhov <[email protected]>
To: David Rowley <[email protected]>
Cc: Ilia Evdokimov <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Lukas Fittl <[email protected]>
Cc: Daniel Gustafsson <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Nikolay Samokhvalov <[email protected]>
Subject: Re: Add estimated hit ratio to Memoize in EXPLAIN to explain cost adjustment
Date: Wed, 23 Jul 2025 09:00:44 +0200
Message-ID: <CAMMNXX=AswuOW+5J3DKWPESUzLi_oor=cvG-px5Vprs88JoLDQ@mail.gmail.com> (raw)
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On 23/7/2025 02:11, David Rowley wrote:
> On Wed, 23 Jul 2025 at 02:35, Andrei Lepikhov <[email protected]> wrote:
>> However, at first, I'd consider how it could be added to the
>> IncrementalSort and HashJoin. The number of estimated groups/buckets may
>> also provide some insights into the planner's decision.
>
> Sounds like another patch for another thread.
Maybe, it is up to you
> Do you have an argument in mind to support adding the group?
I have not. I just thought that grouping would be helpful for an explain
parser.
--
regards, Andrei Lepikhov
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Subject: Re: Add estimated hit ratio to Memoize in EXPLAIN to explain cost adjustment
In-Reply-To: <CAMMNXX=AswuOW+5J3DKWPESUzLi_oor=cvG-px5Vprs88JoLDQ@mail.gmail.com>
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