presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/Partition.java/Partition/Builder
class Partition:        private Builder(Partition partition)
        {
            this.storageBuilder = Storage.builder(partition.getStorage());
            this.databaseName = partition.getDatabaseName();
            this.tableName = partition.getTableName();
            this.values = partition.getValues();
            this.columns = partition.getColumns();
            this.parameters = partition.getParameters();
        }