-- Tags: no-fasttest create temporary table t engine Memory as select * from generateRandom( $$ a Array(Int8), b UInt32, c Nullable(String), d Decimal32(4), e Nullable(Enum16('h' = 1, 'w' = 5 , 'o' = -200)), f Float64, g Tuple(Date, DateTime('Asia/Istanbul'), DateTime64(3, 'Asia/Istanbul'), UUID), h FixedString(2), i Array(Nullable(UUID)) $$, 10, 5, 3) limit 2; select * apply toJSONString from t; select toJSONString(map('1234', '5678'));