Re: [PG19] ILIKE index scan misses rows with a libc UTF-8 collation on macOS

From: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
To: shihao zhong <zhong950419(at)gmail(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Jeff Davis <pgsql(at)j-davis(dot)com>, Noah Misch <noah(at)leadboat(dot)com>
Subject: Re: [PG19] ILIKE index scan misses rows with a libc UTF-8 collation on macOS
Date: 2026-10-19 00:59:26
Message-ID: CAHGQGwGGnioZHzctyNggYV4EeQkPCoAx_HP0qrcXAps+iN0=YQ@mail.gmail.com
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On Sun, Oct 18, 2026 at 12:53 PM shihao zhong <zhong950419(at)gmail(dot)com> wrote:
> On the master and REL_19_STABLE heads the index scan returns 1. A seq
> scan returns 2. glibc on Linux classifies all of them, so it is fine.

I reproduced this issue on my macOS as well. The patch looks good to me.

Regards,

--
Fujii Masao

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