Github user chenghao-intel commented on the pull request:
https://github.com/apache/spark/pull/5538#issuecomment-94626030
I am not so sure if this is the correct implementation, as we probably not
able to get the correct `SessionState` object in executors.
Hive seems doesn't provide the UDF of `currentDB` either, but there is a
workaround in Hive,
http://stackoverflow.com/questions/17986436/how-to-identify-which-database-the-user-is-using-in-hive-cli
Or, should we implemented the same thing for SparkSQL CLI?
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