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create table cities ( col text ); insert into cities values ('г.Москва'), ('Санкт-Петербург г'), ('г Владивосток'), ('Город Екатеринбург'), ('Хабаровск г'), ('Г.Новосибирск'), ('Г Мурманск'), ('город Казань'), ('Г барнаул'), ('г.Ростов-на-Дону'); select * from cities; select trim(regexp_replace(col, '(город|г|Г)?', '', 'gi'), '. ,') from cities;

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