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
- Fix date selection in parquet column statistics where date is set to 0 (signified as null)
- Hive partition createtime initialized to 0
- Add dynamic filtering for hash join
- Improve Hive split efficiency for small files
- Support microsecond precision in Presto
- Support insert overwrite/insert into for partitions
- Support insert for Hive tables
- Add lateral view support
- Add semi join support
- Map elementAt and Map Subscript Operators are duplicated
- Docs
- Java not yet supported