@org.apache.thrift.annotation.Nullable
  public java.util.Iterator<java.lang.String> getBucketColsIterator() {
    return (this.bucketCols == null) ? null : this.bucketCols.iterator();
  }
Returns true if field serdeInfo is set (has been assigned a value) and false otherwise
standalone-metastore/metastore-common/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/metastore/api/StorageDescriptor.java