loop 1 1 10 3000 100 60000 select * from file('test_all_expr_matches.values', Values, 'd DateTime, i UInt32, s String, ni Nullable(UInt64), ns Nullable(String), ars Array(String)') select * from file('test_some_expr_matches.values', Values, 'i Int64, ari Array(Int64), ars Array(String)')