Created a table named NUMBERS with NUM_DECFLOAT column of the type DECFLOAT, when a change record is produced, this warning message shown:

Unexpected JDBC type '1111' for column 'NUM_DECFLOAT' that will be ignored

The nice thing is that the record is still produced, just without this field included.

According to the documentation, this type is supported and should be treated as org.apache.kafka.connect.data.Decimal