Github user cloud-fan commented on the issue:
https://github.com/apache/spark/pull/18142
> Spark SQL is designed to be compatible with the Hive Metastore, SerDes
and UDFs.
This is different from `Spark can run any Hive SQL`. Spark can load and use
Hive UDFs, with the right SQL syntax.
Anyway I'm happy to see a PR to note it. It's good to be verbose in the
doc. But I won't treat it a must-have.
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