icu_ext

pig build pkg icu_ext         # 构建 RPM 包

pig repo add pgdg -u          # 添加 PGDG 仓库并更新缓存

CREATE EXTENSION icu_ext;

CREATE EXTENSION icu_ext;

SELECT icu_version();           -- ICU library version
SELECT icu_unicode_version();   -- Unicode standard version

SELECT * FROM icu_locales_list() WHERE name LIKE 'es%' LIMIT 5;
SELECT icu_default_locale();
SELECT icu_set_default_locale('en');

SELECT * FROM icu_collation_attributes('fr-u-ks-level2-kn');

-- Case-sensitive, accent-insensitive comparison:
SELECT icu_compare('abce', 'abce', 'en-u-ks-level1-kc-true');  -- 0
SELECT icu_compare('Abce', 'abce', 'en-u-ks-level1-kc-true');  -- 1

CREATE UNIQUE INDEX idx ON my_table((icu_sort_key(name, 'fr-u-ks-level1')));

SELECT icu_strpos('Jean-Rene Dupont', 'jeanrene', 'fr-u-ks-level1-ka-shifted');
SELECT icu_replace('Jean-Rene Dupont', 'jeanrene', '{firstname}', 'fr-u-ks-level1-ka-shifted');

SELECT * FROM icu_character_boundaries('Hello', 'en');
SELECT * FROM icu_word_boundaries('I like books', 'en');
SELECT * FROM icu_sentence_boundaries('Mr. Smith went home. He was tired.', 'en');
SELECT * FROM icu_line_boundaries('Long text here', 'en');

SELECT icu_normalize('text', 'NFC');
SELECT icu_is_normalized('text', 'NFC');
SELECT icu_transform('Hello', 'Latin-Cyrillic');
SELECT * FROM icu_transforms_list();

SET icu_ext.locale TO '@calendar=buddhist';

SELECT icu_format_date('2020-12-31'::date, '{medium}', 'en@calendar=ethiopic');
SELECT icu_parse_date('25/09/2566', 'dd/MM/yyyy');
SELECT icu_format_datetime(now(), 'GGGG dd/MMMM/yyyy HH:mm:ss.SSS z', 'fr@calendar=buddhist');

SELECT icu_number_spellout(42, 'en');   -- 'forty-two'
SELECT icu_number_spellout(42, 'fr');   -- 'quarante-deux'

SELECT icu_spoof_check('paypal');
SELECT icu_confusable_strings_check('google', 'gооgle');
SELECT icu_confusable_string_skeleton('phi1');

SELECT icu_char_name('A');
SELECT icu_char_type('A');
SELECT icu_char_ublock_id('A');
SELECT * FROM icu_unicode_blocks() WHERE block_name = 'Basic_Latin';