Github user chenghao-intel commented on the pull request:
https://github.com/apache/spark/pull/5880#issuecomment-107977413
Oh, thanks for noticing this. But the answer is not necessary!
In user application, the `HiveContext` will create the `SessionState`
(indirectly) before `SQLParser` being called/created, and then `val ss =
SessionState.get()` will always be non-null.
The reason that I put the `new HiveConf()` is for unit test purpose for
`HiveQl`, which can run independently without `HiveContext` being initialized.
Sorry, I should put more comment here.
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