Ngone51 commented on a change in pull request #28572:
URL: https://github.com/apache/spark/pull/28572#discussion_r427283021
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
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@@ -2439,6 +2439,17 @@ class DataFrameSuite extends QueryTest
val nestedDecArray = Array(decSpark)
checkAnswer(Seq(nestedDecArray).toDF(), Row(Array(wrapRefArray(decJava))))
}
+
+ test("SPARK-31750: eliminate UpCast if child's dataType is DecimalType") {
+ withTempPath { f =>
+ sql("select cast(11111111111111111111111111111111111111 as decimal(38,
0)) as d")
Review comment:
I can make it shorter.
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