Trim excess fields

[Paultagoras]

This should help reduce the payload size, if there is a lot of data being sent to Kafka but only a limited number of fields in the table itself.

[mzitnik]

Do we have a test?
Going forward i would like us to convert it to RawBinary (and not send it as json - this should also take care of not sending unnecessary data)

[Paultagoras]

Do we have a test? Going forward i would like us to convert it to RawBinary (and not send it as json - this should also take care of not sending unnecessary data)

I'd love to add insert(Map) to the v2 client and use that... 😉