CREATE TABLE jobs (
id SERIAL PRIMARY KEY,
title VARCHAR(100) NOT NULL,
po_category TEXT NOT NULL
);
INSERT INTO jobs (title, po_category) VALUES
('Plumber', '64,93,97'),
('Electric', '64'),
('Painter', '93,97'),
('Driver', '12,64'),
('Chef', '93');
SELECT *
FROM jobs
WHERE STRING_TO_ARRAY(po_category,',')::INTEGER[] && ARRAY[64,97]