Re: hashing bpchar for nondeterministic collations is broken

From: Jeff Davis <pgsql(at)j-davis(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Richard Guo <guofenglinux(at)gmail(dot)com>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: hashing bpchar for nondeterministic collations is broken
Date: 2022-12-02 22:04:30
Message-ID: 747aad52a232029184e675b7da23828ebcfd0658.camel@j-davis.com
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On Fri, 2022-12-02 at 16:49 -0500, Tom Lane wrote:
> Yeah.  Also, do we have this issue with hash indexes?

No, it appears that hash indexes only call hashbpchar, which doesn't
have the bug.

Extended hash functions seem to only be used in hash partitioning, and
other extended hash functions.

Regards,
Jeff Davis

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