Retrieve last_visited value in Aerospike -

according aerospike docs can

use udf compare last_visited value of record

how access last_visited value of record? not included in records metadata.

i believe implying last time record "touched". has update, not merely read. read not change record in way. touch operation on record updates metadata. in metadata, last_update_time (lut) (introduced ver 3.8.3+). can access record's last_update_time inside udf (lua - user defined function) record.last_update_time.