Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/20649#discussion_r172080837
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/types/StructType.scala ---
@@ -284,7 +286,8 @@ case class StructType(fields: Array[StructField])
extends DataType with Seq[Stru
val nonExistFields = names -- fieldNamesSet
if (nonExistFields.nonEmpty) {
throw new IllegalArgumentException(
- s"Field ${nonExistFields.mkString(",")} does not exist.")
+ s"""Fields ${nonExistFields.mkString(", ")} does not exist.
--- End diff --
nit: `nonExistFields` can contain only one field, so maybe `Fields` ->
`Field(s)`?
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
