DebeziumEvent

True if this is a Debezium heartbeat event, or the equivalent thereof. In any case, such events are only used for their position value and for triggering timeouts.

Debezium can output a tombstone event that has a value of null. This is an artifact of how it interacts with kafka. We want to ignore it. More on the tombstone: https://debezium.io/documentation/reference/stable/transformations/event-flattening.html

This SourceRecord object is the preferred way to obtain the current position.