Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/22987#discussion_r231992909 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/execution/SQLWindowFunctionSuite.scala --- @@ -31,6 +32,19 @@ class SQLWindowFunctionSuite extends QueryTest with SharedSQLContext { import testImplicits._ + val empSalaryData = Seq( --- End diff -- We really just need a simple test that proves `over (w)` works.
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