Re: Slow GRANT ROLE on PostgreSQL 16 with thousands of ROLEs

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)lists(dot)postgresql(dot)org, alex work <alexwork033(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>
Subject: Re: Slow GRANT ROLE on PostgreSQL 16 with thousands of ROLEs
Date: 2024-03-22 14:55:32
Message-ID: 20240322145532.GA2346110@nathanxps13
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On Fri, Mar 22, 2024 at 09:47:39AM -0500, Nathan Bossart wrote:
> hash hash+simd hash+simd+bloom
> create 1.27 1.27 1.28
> grant 0.18 0.11 0.03

For just hash+bloom, I'm seeing 1.29 and 0.04.

--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

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