text: -- Copyright 2004-2019 H2 Group. Multiple-Licensed under the MPL 2.0,
  -- and the EPL 1.0 (https://h2database.com/html/license.html).
  -- Initial Developer: H2 Group
  --
  
  select bitxor(null, 1) vn, bitxor(1, null) vn1, bitxor(null, null) vn2, bitxor(3, 6) e5;
  > VN   VN1  VN2  E5
  > ---- ---- ---- --
  > null null null 5
  > rows: 1
  