From: Nagy László Zsolt <gandalf@shopzeus.com>
To: pgsql-admin@postgresql.org
Subject: How to setup a good collation?
Date: Sun, 6 Mar 2016 10:13:27 +0100
Message-ID: <56DBF4B7.1050200@shopzeus.com> (raw)
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Example database on a Unix system:
CREATE DATABASE test
TEMPLATE = template0
ENCODING = 'UTF8'
LC_COLLATE = 'hu_HU.UTF-8'
LC_CTYPE = 'hu_HU.UTF-8'
CONNECTION LIMIT = -1;
\c test
create table a (name text collate "hu_HU.UTF-8");
insert into a values ('a');
insert into a values ('á');
insert into a values ('Á');
insert into a values ('b');
insert into a values ('e');
insert into a values ('é');
insert into a values ('É');
insert into a values ('o');
insert into a values ('ó');
insert into a values ('ö');
insert into a values ('U');
insert into a values ('Ü');
insert into a values ('Z');
select name from a order by upper(name) asc;
Results in:
"a"
"b"
"e"
"o"
"U"
"Z"
"á"
"Á"
"é"
"É"
"ó"
"ö"
"Ü"
Which is bad. The good order should be the following:
"a"
"á"
"Á"
"b"
"e"
"é"
"É"
"o"
"ó"
"ö"
"U"
"Ü"
"Z"
What is wrong with my collaction setup?
Thanks,
Laszlo
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To: pgsql-admin@postgresql.org
Cc: gandalf@shopzeus.com
Subject: Re: How to setup a good collation?
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