Constant LONG 

pub const LONG: i64 = qnull_base::J; // -9_223_372_036_854_775_808i64

Null value of long (0N).

Example

use kdbplus::ipc::*;

let q_long_null = K::new_long(qnull::LONG);
assert_eq!(format!("{}", q_long_null), String::from("0N"));