postcursor.execute('SELECT customer_id, customer_name FROM CUSTOMER WHERE fl_ready=0')
	postselect_result = postcursor.fetchall()
	for id, name in postselect_result:
	print id, name

	postcursor.execute('SELECT customer_id, customer_name FROM CUSTOMER WHERE fl_ready=0')
	postselect_result = postcursor.fetchall()
	for id, name, data in postselect_result:
	print id, name, data

ValueError: too many values to unpack

postcursor.execute('SELECT customer_id, customer_name, data FROM CUSTOMER WHERE fl_ready=0')