public static void copyJobPropertiesToJobConf(
    Map<String, String> jobProperties, JobConf jobConf) {
    for (Map.Entry<String, String> entry : jobProperties.entrySet()) {
      jobConf.set(entry.getKey(), entry.getValue());
    }
  }
Returns the hive-site.xml config settings which do not appear in <code>jobConf<code> or
the hive-site.xml config settings which appear in <code>jobConf<code>, but have a
different value than HiveConf code defaults.
@param hiveSite the config settings as found in the hive-site.xml only.
@param jobConf the config settings used to launch the job.
@return the set difference between hiveSite and jobConf.
hcatalog/core/src/main/java/org/apache/hive/hcatalog/common/HCatUtil.java