Postgres重置自增長id列(reset sequence)

簡單的兩個方法，個人比較喜歡第一個

①
ALTER SEQUENCE seq RESTART WITH 1;
②

SELECT setval('sequence_name', 0);




參考自http://stackoverflow.com/questions/4678110/how-to-reset-sequence-in-postgres-and-fill-id-column-with-new-data