There is no ID field in my table why select will default with it
# my code
class user_account(Model):

    user_no = BigIntegerField()
    amount = DecimalField()
    frozen_amount = DecimalField()
    create_time = DateTimeField()
    creator = CharField()
    edit_time = DateTimeField()
    editor = CharField()
    is_del = BooleanField()
    version = CharField()

    class Meta:
        database = db

db.connect()

print user_account.select()

-------------------------

then you will see:
<class '__main__.user_account'> SELECT **"t1"."id"**, "t1"."user_no", "t1"."amount", "t1"."frozen_amount", "t1"."create_time", "t1"."creator", "t1"."edit_time", "t1"."editor", "t1"."is_del", "t1"."version" FROM "user_account" AS t1 []

but there is no id fieid in my table.