public static boolean checkInputFormatForLlapEncode(Configuration conf, String ifName) {
    String formatList = HiveConf.getVar(conf, ConfVars.LLAP_IO_ENCODE_FORMATS);
    LOG.debug("Checking {} against {}", ifName, formatList);
    String[] formats = StringUtils.getStrings(formatList);
    if (formats != null) {
      for (String format : formats) {
        // TODO: should we check isAssignableFrom?
        if (ifName.equals(format)) {
          LOG.info("Using SerDe-based LLAP reader for " + ifName);
          return true;
        }
      }
    }
    return false;
  }
The position of the first byte in the file to process.
ql/src/java/org/apache/hadoop/hive/ql/io/HiveInputFormat.java