Github user asfgit closed the pull request at:
https://github.com/apache/zeppelin/pull/1440
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GitHub user zjffdu opened a pull request:
https://github.com/apache/zeppelin/pull/1440
ZEPPELIN-1427. Scala z.show() doesn't work on v.0.6.1
### What is this PR for?
`ZeppelinContext.show` doesn't work for spark 1.6. The root cause is that
`Dataset` is also available in spark 1.
