HyukjinKwon commented on a change in pull request #29645:
URL: https://github.com/apache/spark/pull/29645#discussion_r483467868
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
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@@ -1537,4 +1576,230 @@ class ColumnExpressionSuite extends QueryTest with
SharedSparkSession {
Row(3) :: Row(null):: Nil,
StructType(Seq(StructField("a", IntegerType, nullable = true))))
}
+
+ test("withField should add field to struct of array") {
+ checkAnswerAndSchema(
+ arrayLevel1.withColumn("a", 'a.withField("d", lit(4))),
Review comment:
@viirya, BTW, is it same as:
```scala
transform($"struct_col", _.withField("new_col", col))
```
?
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