presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/SemiTransactionalHiveMetastore.java/AlterPartitionOperation/run
class AlterPartitionOperation:        public void run(HiveMetastore metastore)
        {
            undo = true;
            metastore.alterPartition(identity, newPartition.getPartition().getDatabaseName(), newPartition.getPartition().getTableName(), newPartition);
        }