Limitations of Quantum¶
Currently, Quantum has these limitations:
- Quantum does not support the custom serialization class. Qubole recommends converting to a format that can be read by the in-built SerDes (CSV, JSON, Avro, ORC, and Parquet).
- Presto system connector is used to query information about currently running queries, tasks, nodes, and so on. As Quantum is managed by Qubole, the interfaces are not exposed directly to Presto system connector. You can only query Hive connector.
- Quantum does not allow you to set a bootstrap or set session properties.
- Quantum does not support AWS Glue Metastore.