The following bug has been logged online:
Bug reference: 3433
Logged by: Andriy Rysin
Email address: arysin@gmail.com
PostgreSQL version: 8.2.4
Operating system: Linux
Description: regexp \m and \M don't work for cyrillic
Details:
psql krym
krym=> \encoding
UTF8
krym=> create table test (txt varchar);
CREATE TABLE
krym=> insert into test values ('latin');
INSERT 0 1
krym=> insert into test values ('киÑилиÑÑ');
INSERT 0 1
krym=> select * from test;
txt
----------
latin
киÑилиÑÑ
(2 rows)
krym=> select * from test where txt ~* E'\\mla';
txt
-------
latin
(1 row)
krym=> select * from test where txt ~* E'\\mкиÑ';
txt
-----
(0 rows)
escaping specials in regular expressions \m and \M for beginning of word and
end of word work for latin symbols bug don't for cyrillic