milovidov-desktop :) SELECT untuple((1.0, 2)), untuple((1, *)) FROM (SELECT 123)

SELECT
    untuple((1., 2)),
    untuple((1, *))
FROM
(
    SELECT 123
)

Query id: 62123bd3-0d56-45c6-8037-12909cbb3d2e


0 rows in set. Elapsed: 0.002 sec. 

Received exception from server (version 21.9.1):
Code: 49. DB::Exception: Received from localhost:9000. DB::Exception: Bad cast from type DB::ColumnVector<double> to DB::ColumnVector<char8_t>. 

milovidov-desktop :) SELECT untuple((1.0, 2)), untuple((NULL, *)) FROM (SELECT 123)

SELECT
    untuple((1., 2)),
    untuple((NULL, *))
FROM
(
    SELECT 123
)