Github user hvanhovell commented on a diff in the pull request: https://github.com/apache/spark/pull/12421#discussion_r61240023 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameAggregateSuite.scala --- @@ -430,4 +430,13 @@ class DataFrameAggregateSuite extends QueryTest with SharedSQLContext { expr("kurtosis(a)")), Row(null, null, null, null, null)) } + + test("SPARK-14664: Decimal sum/avg over window should work.") { + checkAnswer( + sqlContext.sql("select sum(a) over () from (select explode(array(1.0,2.0,3.0)) a) t"), --- End diff -- Note: you can also use `select sum(a) over () from values 1.0, 2.0, 3.0 x(a)`
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