Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/22408#discussion_r219038350 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala --- @@ -735,6 +735,60 @@ class DataFrameFunctionsSuite extends QueryTest with SharedSQLContext { df.selectExpr("array_contains(array(1, null), array(1, null)[0])"), Seq(Row(true), Row(true)) ) + + checkAnswer( + df.selectExpr("array_contains(array(1), 1.23D)"), --- End diff -- this query doesn't read any data from `df`, so the 2 result rows are always same. Can we use `OneRowRelation` here?
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