presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/SemiTransactionalHiveMetastore.java/SemiTransactionalHiveMetastore/UpdateStatisticsOperation
class SemiTransactionalHiveMetastore:        public UpdateStatisticsOperation(HiveIdentity identity, SchemaTableName tableName, Optional<String> partitionName, PartitionStatistics statistics, boolean merge)
        {
            this.identity = requireNonNull(identity, "identity is null");
            this.tableName = requireNonNull(tableName, "tableName is null");
            this.partitionName = requireNonNull(partitionName, "partitionValues is null");
            this.statistics = requireNonNull(statistics, "statistics is null");
            this.merge = merge;
        }