private MType getMType(Type type) {
    List<MFieldSchema> fields = new ArrayList<>();
    if (type.getFields() != null) {
      for (FieldSchema field : type.getFields()) {
        fields.add(new MFieldSchema(field.getName(), field.getType(), field
            .getComment()));
      }
    }
    return new MType(type.getName(), type.getType1(), type.getType2(), fields);
  }
Alter the dataconnector object in metastore. Currently only the parameters
of the dataconnector or the owner can be changed.
@param dcName the dataconnector name
@param connector the Hive DataConnector object
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/ObjectStore.java