long extract(ConsumerRecord<Object,Object> record)
The extracted timestamp MUST represent the milliseconds since midnight, January 1, 1970 UTC.
It is important to note that this timestamp may become the message timestamp for any messages sent to changelogs updated by
and joins. The message timestamp is used for log retention and log rolling, so using nonsensical values may result in
excessive log rolling and therefore broker performance degradation.
record- a data record