viirya commented on a change in pull request #29771:
URL: https://github.com/apache/spark/pull/29771#discussion_r490368235
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
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@@ -2555,6 +2555,18 @@ class DataFrameSuite extends QueryTest
val df = Seq(0.0 -> -0.0).toDF("pos", "neg")
checkAnswer(df.select($"pos" > $"neg"), Row(false))
}
+
+ test("SPARK-32635: Replace references with foldables coming only from the
node's children") {
+ val a = Seq("1").toDF("col1").withColumn("col2", lit("1"))
+ val b = Seq("2").toDF("col1").withColumn("col2", lit("2"))
+ val aub = a.union(b)
+ val c = aub.filter($"col1" === "2").cache()
+ val d = Seq("2").toDF( "col4")
Review comment:
nit: extra space before "col4"
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