Bool¶
Type bool is internally stored as UInt8. Possible values are true (1), false (0).
select true as col, toTypeName(col) ┌─col──┬─toTypeName(true)─┐ │ true │ Bool │ └──────┴──────────────────┘ select true == 1 as col, toTypeName(col) ┌─col─┬─toTypeName(equals(true, 1))─┐ │ 1 │ UInt8 │ └─────┴─────────────────────────────┘