SELECT string_agg(substring('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!#$%&()*+,-./:;<=>?@[]^', ceil(random() * 85)::integer, 1), '') FROM generate_series(1,32);
create extension if not exists pgcrypto;
select encode(gen_random_bytes(32),'base64');