Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/14957#discussion_r77761381 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/types/StructType.scala --- @@ -280,6 +280,29 @@ case class StructType(fields: Array[StructField]) extends DataType with Seq[Stru } /** + * Extracts the [[StructField]] with the given name recursively. + * + * @throws IllegalArgumentException if the parent field's type is not StructType + */ + def getFieldRecursively(name: String): StructField = { --- End diff -- I think I understood how it works. My point is, this is a Parquet-specific problem not related with Catalyst module. I don't see any reason that this method should be exposed. I believe we can do this not by modifying the column names (not even for a temporary use).
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