def get_columns(self, table, schema=None):
        sql = """
            SELECT column_name, is_nullable, data_type
            FROM information_schema.columns
            WHERE table_name = %s AND table_schema = DATABASE()"""
        cursor = self.execute_sql(sql, (table,))
        pks = set(self.get_primary_keys(table))
        return [ColumnMetadata(name, dt, null == 'YES', name in pks, table)
                for name, null, dt in cursor.fetchall()]
dataset/ETHPy150Open coleifer/peewee/peewee.py/MySQLDatabase.get_columns/original