HyukjinKwon commented on a change in pull request #34901:
URL: https://github.com/apache/spark/pull/34901#discussion_r769148811
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File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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@@ -134,6 +144,9 @@ object functions {
* The difference between this function and [[lit]] is that this function
* can handle parameterized scala types e.g.: List, Seq and Map.
*
+ * Note: `typedlit` will call expensive Scala reflection APIs. `lit` is
preferred if parameterized
+ * scala types are not used.
Review comment:
```suggestion
* @note `typedlit` will call expensive Scala reflection APIs. `lit` is
preferred if parameterized
* Scala types are not used.
```
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