sqlalchemy.exc.DataError: (psycopg2.errors.InvalidTextRepresentation) invalid input syntax for type integer: “B1”

class User(UserMixin, db.Model):
    id = db.Column(db.String(1000), primary_key=True )
    name = db.Column(db.String(1000))
    # ...
    is_admin = db.Column(db.Boolean)

pg_dump -U your_user your_database -t person --schema-only