From: | "Daniel Verite" <daniel(at)manitou-mail(dot)org> |
---|---|
To: | "Peter Eisentraut" <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
Cc: | "pgsql-hackers" <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: insensitive collations |
Date: | 2018-12-19 12:06:29 |
Message-ID: | 39af4787-8042-4891-887c-3283488735db@manitou-mail.org |
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Lists: | pgsql-hackers |
Peter Eisentraut wrote:
> So this doesn't actually make the collation case-insensitive or
> anything, it just allows a library-provided collation that is, say,
> case-insensitive to actually work that way.
That's great news!
> So maybe "insensitive" isn't the right name for this flag, but we
> can think about that.
To me it seems more natural to find a name for the other behavior, the
one that consists of overwriting the locale-sensitive equality with
the result of the byte-wise comparison. AFAIU the flag is meant
to say: "don't do that".
Some ideas that come to mind:
as an enum
CREATE COLLATION ... ( [EQUALITY = 'natural' | 'bytewise' ] )
as a boolean
CREATE COLLATION ... ( [NATURAL_EQUALITY = true | false ] )
defaulting to false
or
CREATE COLLATION ... ( [BYTEWISE_EQUALITY = true | false ] )
defaulting to true
Best regards,
--
Daniel Vérité
PostgreSQL-powered mailer: http://www.manitou-mail.org
Twitter: @DanielVerite
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