HyukjinKwon commented on a change in pull request #30467:
URL: https://github.com/apache/spark/pull/30467#discussion_r529112000
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala
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@@ -218,6 +226,77 @@ case class GetArrayStructFields(
}
}
+object ExtractNestedArray {
+ type ReturnType = Option[(DataType, Boolean, Seq[Boolean])]
+
+ def unapply(dataType: DataType): ReturnType = {
+ extractArrayType(dataType)
+ }
+
+ def extractArrayType(dataType: DataType): ReturnType = {
Review comment:
@guiyanakuang can you address the comments in
https://github.com/apache/spark/pull/28860?
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