@Override
    @SuppressWarnings("unchecked")
    public Wikipedia build() {
      try {
        Wikipedia record = new Wikipedia();
        record.isrobot = fieldSetFlags()[0] ? this.isrobot : (java.lang.Boolean) defaultValue(fields()[0]);
        record.channel = fieldSetFlags()[1] ? this.channel : (java.lang.String) defaultValue(fields()[1]);
        record.timestamp = fieldSetFlags()[2] ? this.timestamp : (java.lang.String) defaultValue(fields()[2]);
        record.flags = fieldSetFlags()[3] ? this.flags : (java.lang.String) defaultValue(fields()[3]);
        record.isunpatrolled = fieldSetFlags()[4] ? this.isunpatrolled : (java.lang.Boolean) defaultValue(fields()[4]);
        record.page = fieldSetFlags()[5] ? this.page : (java.lang.String) defaultValue(fields()[5]);
        record.diffurl = fieldSetFlags()[6] ? this.diffurl : (java.lang.String) defaultValue(fields()[6]);
        record.added = fieldSetFlags()[7] ? this.added : (java.lang.Long) defaultValue(fields()[7]);
        record.comment = fieldSetFlags()[8] ? this.comment : (java.lang.String) defaultValue(fields()[8]);
        record.commentlength = fieldSetFlags()[9] ? this.commentlength : (java.lang.Long) defaultValue(fields()[9]);
        record.isnew = fieldSetFlags()[10] ? this.isnew : (java.lang.Boolean) defaultValue(fields()[10]);
        record.isminor = fieldSetFlags()[11] ? this.isminor : (java.lang.Boolean) defaultValue(fields()[11]);
        record.delta = fieldSetFlags()[12] ? this.delta : (java.lang.Long) defaultValue(fields()[12]);
        record.isanonymous = fieldSetFlags()[13] ? this.isanonymous : (java.lang.Boolean) defaultValue(fields()[13]);
        record.user = fieldSetFlags()[14] ? this.user : (java.lang.String) defaultValue(fields()[14]);
        record.deltabucket = fieldSetFlags()[15] ? this.deltabucket : (java.lang.Double) defaultValue(fields()[15]);
        record.deleted = fieldSetFlags()[16] ? this.deleted : (java.lang.Long) defaultValue(fields()[16]);
        record.namespace = fieldSetFlags()[17] ? this.namespace : (java.lang.String) defaultValue(fields()[17]);
        return record;
      } catch (java.lang.Exception e) {
        throw new org.apache.avro.AvroRuntimeException(e);
      }
    }
Clears the value of the 'namespace' field.
@return This builder.
itests/qtest-druid/src/main/java/org/apache/hive/kafka/Wikipedia.java