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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