···4040 created text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),4141 unique(did, name, knot)4242 );4343+ create table if not exists follows (4444+ user_did text not null,4545+ subject_did text not null,4646+ followed_at text not null default (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),4747+ primary key (user_did, subject_did),4848+ check (user_did <> subject_did)4949+ );4350 `)4451 if err != nil {4552 return nil, err