SELECT nested(['a', 'b'], [1, 2], materialize([3, 4])); DROP TABLE IF EXISTS test; CREATE TABLE test ( x UInt8, “struct.x” DEFAULT [0], “struct.y” ALIAS [1], ) ENGINE = Memory; insert into test (x) values (0); select * from test array join struct; select x, struct.x, struct.y from test array join struct; DROP TABLE test;