postgresql/contrib/unaccent/sql/unaccent.sql

CREATE EXTENSION unaccent;

-- must have a UTF8 database
SELECT getdatabaseencoding();

SET client_encoding TO 'UTF8';

SELECT unaccent('foobar');
SELECT unaccent('ёлка');
SELECT unaccent('ЁЖИК');
SELECT unaccent('˃˖˗˜');
SELECT unaccent('À');  -- Remove combining diacritical 0x0300
SELECT unaccent('℃℉'); -- degree signs
SELECT unaccent('℗'); -- sound recording copyright

SELECT unaccent('unaccent', 'foobar');
SELECT unaccent('unaccent', 'ёлка');
SELECT unaccent('unaccent', 'ЁЖИК');
SELECT unaccent('unaccent', '˃˖˗˜');
SELECT unaccent('unaccent', 'À');
SELECT unaccent('unaccent', '℃℉');
SELECT unaccent('unaccent', '℗');

SELECT ts_lexize('unaccent', 'foobar');
SELECT ts_lexize('unaccent', 'ёлка');
SELECT ts_lexize('unaccent', 'ЁЖИК');
SELECT ts_lexize('unaccent', '˃˖˗˜');
SELECT ts_lexize('unaccent', 'À');
SELECT ts_lexize('unaccent', '℃℉');
SELECT ts_lexize('unaccent', '℗');

-- Controversial case.  Black-Letter Capital H (U+210C) is translated by
-- Latin-ASCII.xml as 'x', but it should be 'H'.
SELECT unaccent('ℌ');