Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/2542#discussion_r18123371
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
---
@@ -110,9 +110,18 @@ abstract class LogicalPlan extends
QueryPlan[LogicalPlan] with Logging {
}
if (resolver(option.name, remainingParts.head)) {
- // Preserve the case of the user's attribute reference.
- (option.withName(remainingParts.head), remainingParts.tail.toList)
:: Nil
+ if (remainingParts.length == 1) {
+ // for simple data type
+ (option.withName(remainingParts.head), Nil) :: Nil
--- End diff --
I don't think we need the `withName` call anymore, since now we preserve
case of attribute names by leveraging `resolver` to compare names.
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