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From: Tom Lane <[email protected]>
To: Christophe Pettus <[email protected]>
Cc: pgsql-general <[email protected]>
Subject: Re: Setting "ucs_basic" as the default database collation
Date: Sun, 27 Oct 2024 11:57:28 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Christophe Pettus <[email protected]> writes:
> Is there a way to specify "ucs_basic" (or the other "standard collations" [1]) collation as the default database collation at database creation time, rather than on a per-column or per-operation basis?

CREATE DATABASE wants you to specify a locale, which ucs_basic is not.
It's defined by SQL as a standard collation name, but that doesn't
make it a complete locale specification.  You can do something like

regression=# create database db1 with encoding = 'utf8' locale = 'en_US.utf8' template = template0;
CREATE DATABASE

or

regression=# create database db2 with encoding = 'utf8' icu_locale = 'en-US-x-icu' locale_provider = icu template = template0;
CREATE DATABASE

or

regression=# create database db3 with encoding = 'utf8' locale = 'POSIX' template = template0;
CREATE DATABASE

			regards, tom lane

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