@Override
    public synchronized void write(K key, V value) throws IOException {
      this.mWriter.write(null, value);
    }
create the final out file, and output row by row. After one row is
appended, a configured row separator is appended

@param jc
         the job configuration file
@param outPath
         the final output file to be created
@param valueClass
         the value class used for create
@param isCompressed
         whether the content is compressed or not
@param tableProperties
         the tableProperties of this file's corresponding table
@param progress
         progress used for status report
@return the RecordWriter
ql/src/java/org/apache/hadoop/hive/ql/io/HiveIgnoreKeyTextOutputFormat.java