private static String[] dedup(String[] locations) {
    Set<String> dedup = new HashSet<String>();
    Collections.addAll(dedup, locations);
    return dedup.toArray(new String[dedup.size()]);
  }
Get the record reader for the next chunk in this CombineFileSplit.
shims/common/src/main/java/org/apache/hadoop/hive/shims/HadoopShimsSecure.java