Answers for "how to clear vales of auto increment postgresql and start from the beginning"

postgresql reset auto_increment index

-- Change the starting value of the sequence

ALTER SEQUENCE project_id_seq RESTART 3000;

-- Same but dynamic :

SELECT SETVAL('project_id_seq', (SELECT MAX(id) + 1 FROM project));

postgresql update auto_increment value

ALTER SEQUENCE product_id_seq RESTART WITH 1453