presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/SemiTransactionalHiveMetastore.java/SemiTransactionalHiveMetastore/PartitionAdder
class SemiTransactionalHiveMetastore:        public PartitionAdder(HiveIdentity identity, String schemaName, String tableName, HiveMetastore metastore, int batchSize)
        {
            this.identity = identity;
            this.schemaName = schemaName;
            this.tableName = tableName;
            this.metastore = metastore;
            this.batchSize = batchSize;
            this.partitions = new ArrayList<>(batchSize);
        }