A representation of the rotate event. NOTE: Users should ignore rotate events that originated from relay logs.

Ratate event's binlog payload is structured as follow:

Common to both 5.5 and 5.6:
    19 bytes for common v4 event headers
    8 bytes (uint64) for offset position
    the remaining for the new log name (not zero terminated).
5.6 Specific:
    (optional) 4 bytes footer for checksum.