[
    {"type":"STRING","name":"mmsi"},
    {"type":"FLOAT","name":"longitude"},
    {"type":"FLOAT","name":"latitude"},
    {"type":"TIMESTAMP","name":"timestamp"},
    {"type":"FLOAT","name":"score"},
    {"type":"FLOAT","name":"navstat"},
    {"type":"FLOAT","name":"hdg"},
    {"type":"FLOAT","name":"rot"},
    {"type":"FLOAT","name":"cog"},
    {"type":"FLOAT","name":"sog"},
    {"type":"STRING","name":"gridcode"},
    {"type":"INTEGER","name":"interval"},
    {"type":"INTEGER","name":"type"},
    {"type":"STRING","name":"next_gridcode"},
    {"type":"STRING","name":"region","mode":"REPEATED"},
    {"type":"STRING","name":"ocean"}
]
[
    {"type":"STRING","name":"mmsi"},
    {"type":"FLOAT","name":"longitude"},
    {"type":"FLOAT","name":"latitude"},
    {"type":"TIMESTAMP","name":"timestamp"},
    {"type":"FLOAT","name":"score"},
    {"type":"FLOAT","name":"navstat"},
    {"type":"FLOAT","name":"hdg"},
    {"type":"FLOAT","name":"rot"},
    {"type":"FLOAT","name":"cog"},
    {"type":"FLOAT","name":"sog"},
    {"type":"STRING","name":"gridcode"},
    {"type":"INTEGER","name":"interval"},
    {"type":"INTEGER","name":"type"},
    {"type":"STRING","name":"next_gridcode"},
    {"type":"STRING","name":"region","mode":"REPEATED"},
    {"type":"STRING","name":"ocean","mode":"REPEATED"}
]

Change processed schema "ocean" field to repeated field
Change processed schema "ocean" field to repeated field
