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# Auxiliary SQL Functions

Kyuubi provides several auxiliary SQL functions as supplement to Spark's [Built-in Functions](https://spark.apache.org/docs/latest/api/sql/index.html#built-in-functions)

Name | Description | Return Type | Since
--- | --- | --- | ---
kyuubi_version | Return the version of Kyuubi Server | string | 1.3.0
engine_name | Return the spark application name for the associated query engine | string | 1.3.0
engine_id | Return the spark application id for the associated query engine | string | 1.4.0
system_user | Return the system user name for the associated query engine | string | 1.3.0
session_user | Return the session username for the associated query engine | string | 1.4.0