define macro for client migration to BDE's 'operator<' on 'bdlb::NullableValue'
define macro for client migration to BDE's 'operator<' on 'bdlb::NullableValue'

bloomberg/bde,che2/bde,bloomberg/bde,bloomberg/bde,bloomberg/bde,che2/bde,che2/bde,che2/bde,bloomberg/bde