Github user jzhuge commented on the issue:
https://github.com/apache/spark/pull/21911
The new commit should have taken care of all review comments except the
following:
> Add an end-to-end test case.
Which test suite is a good place to add such end-to-end case?
> Add a unit test case by using Dataset.hint(name: String, parameters:
String*)
Found it not applicable after examining DataFrameHintSuite.âvarious hint
parameters" .
Do we plan to support such call as `df.hint("COALESCE", Seq(10))`? Why not
just use `df.coalesce(10)`?
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