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doc: Remove buggy ICU collation from documentation 

We have had multiple reports that point to the
'@colReorder=latn-digit' collation customization being buggy.  We have
reported this to ICU and are waiting for a fix.  In the meantime,
remove references to this from the documentation and replace it by
another reordering example.  Apparently, many users have been picking
up this example specifically from the documentation.

Author: Jehan-Guillaume de Rorthais <jgdr@dalibo.com>
Discussion: https://www.postgresql.org/message-id/flat/153201618542.1404.3611626898935613264%40wrigleys.postgresql.org
This commit is contained in:
Peter Eisentraut 2020-09-10 15:31:09 +02:00
parent e30f1aa358
commit d0b585e861
1 changed files with 6 additions and 6 deletions
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12
doc/src/sgml/charset.sgml
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@ -789,11 +789,11 @@ CREATE COLLATION german (provider = libc, locale = 'de_DE');
</varlistentry>
<varlistentry>
<term><literal>CREATE COLLATION digitslast (provider = icu, locale = 'en-u-kr-latn-digit');</literal></term>
<term><literal>CREATE COLLATION digitslast (provider = icu, locale = 'en@colReorder=latn-digit');</literal></term>
<term><literal>CREATE COLLATION latinlast (provider = icu, locale = 'en-u-kr-grek-latn');</literal></term>
<term><literal>CREATE COLLATION latinlast (provider = icu, locale = 'en@colReorder=grek-latn');</literal></term>
<listitem>
<para>
Sort digits after Latin letters. (The default is digits before letters.)
Sort Greek letters before Latin ones. (The default is Latin before Greek.)
</para>
</listitem>
</varlistentry>
@ -809,9 +809,9 @@ CREATE COLLATION german (provider = libc, locale = 'de_DE');
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CREATE COLLATION special (provider = icu, locale = 'en-u-kf-upper-kr-latn-digit');</literal></term>
<term><literal>CREATE COLLATION special (provider = icu, locale = 'en@colCaseFirst=upper;colReorder=latn-digit');</literal></term>
<varlistentry>
<term><literal>CREATE COLLATION special (provider = icu, locale = 'en-u-kf-upper-kr-grek-latn');</literal></term>
<term><literal>CREATE COLLATION special (provider = icu, locale = 'en@colCaseFirst=upper;colReorder=grek-latn');</literal></term>
<listitem>
<para>
Combines both of the above options.