The following bug has been logged online:

Bug reference: 2264
Logged by: Alex Kostyshin
Email address: root (AT) ulif (DOT) org.ua
PostgreSQL version: 8.1.x
Operating system: Windows XP/SP2, Windows XP x64
Description: bad work with cyrillic encoding
Details:

1. Wrong sorting order: not A,a,B,b, etc for cyrillic texts, but
A,B,...,a,b..
String functions do not work with cyrillic arguments, for example:
Latin:
Select lower('Tom')
lower
--------
tom
1 record(s) selected [Fetch MetaData: 31/ms] [Fetch Data: 0/ms]

Cyrillic:
Select lower('Алекс')
lower
--------
Алекс
1 record(s) selected [Fetch MetaData: 0/ms] [Fetch Data: 0/ms]

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