public static boolean isCtas(Properties properties) {
    return Boolean.parseBoolean(properties.getProperty(hive_metastoreConstants.TABLE_IS_CTAS));
  }
Import files from given partitions to an Iceberg table.
@param sourceLocation location of the HMS table
@param format inputformat class name of the HMS table
@param partitionSpecProxy  list of HMS table partitions wrapped in partitionSpecProxy
@param partitionKeys list of partition keys
@param icebergTableProperties destination iceberg table properties
@param conf a Hadoop configuration
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveTableUtil.java