maropu commented on a change in pull request #30974:
URL: https://github.com/apache/spark/pull/30974#discussion_r551088050
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File path: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala
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@@ -2613,6 +2613,19 @@ class DataFrameSuite extends QueryTest
val df = l.join(r, $"col2" === $"col4", "LeftOuter")
checkAnswer(df, Row("2", "2"))
}
+
+ test("SPARK-33939: Make Column.named use UnresolvedAlias to assign name") {
+ val df = spark.range(1).selectExpr("id as id1", "id as id2")
+ val df1 = df.selectExpr("cast(struct(id1, id2).id1 as int)")
+ assert(df1.schema.head.name == "CAST(struct(id1, id2).id1 AS INT)")
Review comment:
nit: could you add tests for the array of structs?
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