viirya commented on a change in pull request #34025:
URL: https://github.com/apache/spark/pull/34025#discussion_r710539301
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/DataFrameSetOperationsSuite.scala
##########
@@ -1018,6 +1018,23 @@ class DataFrameSetOperationsSuite extends QueryTest with
SharedSparkSession {
unionDF = df1.unionByName(df2)
checkAnswer(unionDF, expected)
}
+
+ test("SPARK-36673: Incorrect Unions of struct") {
+ val df1 = spark.range(2).withColumn("nested", struct(expr("id * 5 AS
INNER")))
+ val df2 = spark.range(2).withColumn("nested", struct(expr("id * 5 AS
inner")))
Review comment:
That's said, for `union`, we don't actually care about case sensitivity
as by definition we resolve column by position.
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