ClickHouse/tests/queries/0_stateless/02971_functions_to_subcolumns_map.reference

SELECT __table1.`m.size0` AS `length(m)`
FROM default.t_func_to_subcolumns_map AS __table1
2
1
SELECT __table1.`m.size0` = 0 AS `empty(m)`
FROM default.t_func_to_subcolumns_map AS __table1
0
0
SELECT __table1.`m.size0` != 0 AS `notEmpty(m)`
FROM default.t_func_to_subcolumns_map AS __table1
1
1