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
- Remove redundant shuffles for special expressions and call expressions in group by and select statements
- Add functions: to_date, get_json_object, murmur3hash, max_pt
- Support more implicit type conversions
- 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
- Docs
- Java not yet supported