Re: Inconsistent string comparison using modified ICU collations

From: "Daniel Verite" <daniel(at)manitou-mail(dot)org>
To: "Oleg Tselebrovskiy" <o(dot)tselebrovskiy(at)postgrespro(dot)ru>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Inconsistent string comparison using modified ICU collations
Date: 2025-01-23 21:52:16
Message-ID: 725d6dfb-af91-42d1-bb4d-15febb86ead7@manitou-mail.org
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Oleg Tselebrovskiy wrote:

> I've discovered a bug with string comparison using modified ICU
> collations
> Using a direct comparison and sorting values gives different results
>
> The easiest way to reproduce is the following:
>
> postgres=# create collation "en-US-u-kr-latn-digit-x-icu" (provider
> =
> icu, locale = 'en-US-u-kr-latn-digit');

This looks similar to bug #15285:
https://www.postgresql.org/message-id/153201618542.1404.3611626898935613264@wrigleys.postgresql.org

Best regards,
--
Daniel Vérité
https://postgresql.verite.pro/

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