Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/2382#discussion_r17578145
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
---
@@ -96,8 +101,17 @@ abstract class LogicalPlan extends
QueryPlan[LogicalPlan] {
val options = input.flatMap { option =>
// If the first part of the desired name matches a qualifier for
this possible match, drop it.
val remainingParts =
- if (option.qualifiers.contains(parts.head) && parts.size > 1)
parts.drop(1) else parts
- if (option.name == remainingParts.head) (option,
remainingParts.tail.toList) :: Nil else Nil
+ if (option.qualifiers.filter(resolver(_, parts.head)).nonEmpty &&
parts.size > 1) {
--- End diff --
`find` would be better than `filter` here.
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