presto
https://github.com/prestodb/presto
Java
The official home of the Presto distributed SQL query engine for big data
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- Issues
- Planning time and Execution time is too long
- Support implicit mapping of Presto datatype Char to Iceberg datatype String
- Fix Druid anonymous columns become NULL when aggregation is pushed down
- Aggregation functions min_by and max_by should be order-sensitive
- Handle case of table with no supported columns
- [DO NOT LAND] Batch copy of IntArray values + Benchmark
- [WIP] Split-Retry prototype
- Enhance HiveExternalWorkerQueryRunner to use an etc_dir for config files
- Expand Presto ML Capabilities
- [Native] Bound caching of parsed types
- Docs
- Java not yet supported