@Override
      public void close(boolean abort) throws IOException {
        outStream.close();
      }
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
         ignored. Currently we don't support compression.
@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/HiveBinaryOutputFormat.java