#NEWLINE# def test_union_uninit( self ) : #NEWLINE# #INDENT# a = table ( 'a' , column ( 'x' ) ) #NEWLINE# s1 = select ( [ a ] ) #NEWLINE# s2 = select ( [ a ] ) #NEWLINE# s3 = s1 . union ( s2 ) #NEWLINE# q = column ( 'q' ) #NEWLINE# a . append_column ( q ) #NEWLINE# s3 . _refresh_for_new_column ( q ) #NEWLINE# assert ( s2 . c . q in s3 . c . q . proxy_set )