kyuubi/docs/overview/kyuubi_vs_hive.md

Kyuubi v.s. HiveServer2

Differences Between Kyuubi and HiveServer2

• Kyuubi	HiveServer2
  ** Language **	Spark SQL	Hive QL
  ** Optimizer **	Spark SQL Catalyst	Hive Optimizer
  ** Engine **	up to Spark 3.x	MapReduce/up to Spark 2.3/Tez
  ** Performance **	High	Low
  ** Compatibility w/ Spark **	Good	Bad(need to rebuild on a specific version)
  ** Data Types **	Spark Data Types	Hive Data Types

References

1. HiveServer2 Overview