set that is preloaded by <command>initdb</command>. Users are encouraged

to define their own collation objects that make use of these facilities to

suit the sorting behavior to their requirements.

See <ulink url="http://userguide.icu-project.org/locale"></ulink>

and <ulink url="http://userguide.icu-project.org/collation/api"></ulink> for

See <ulink url="https://unicode-org.github.io/icu/userguide/locale/"></ulink>

and <ulink url="https://unicode-org.github.io/icu/userguide/collation/api.html"></ulink> for

information on ICU locale naming. The set of acceptable names and

attributes depends on the particular ICU version.

</para>

subtag) can be found in

the <ulink url="https://github.com/unicode-org/cldr/blob/master/common/bcp47/collation.xml">CLDR

repository</ulink>.

The <ulink url="https://ssl.icu-project.org/icu-bin/locexp">ICU Locale

Explorer</ulink> can be used to check the details of a particular locale

definition. The examples using the <literal>k*</literal> subtags require

at least ICU version 54.

</para>

<para>