protected void reportProgress() {
    // Send some status periodically
    countAfterReport++;

    if ((countAfterReport % heartbeatInterval) == 0
        && (reporter != null)) {
      reporter.progress();
      countAfterReport = 0;
    }
  }
Forward a record of join results.

@throws HiveException
ql/src/java/org/apache/hadoop/hive/ql/exec/CommonJoinOperator.java