Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/2701#discussion_r18560809
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/types/dataTypes.scala
---
@@ -348,8 +356,8 @@ case class StructType(fields: Seq[StructField]) extends
DataType {
* have a name matching the given name, `null` will be returned.
*/
def apply(name: String): StructField = {
- nameToField.get(name).getOrElse(
- throw new IllegalArgumentException(s"Field ${name} does not exist."))
+ nameToField.getOrElse(name,
+ throw new IllegalArgumentException(s"Field $name does not exist."))
--- End diff --
Nit: no need to wrap
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