Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/10174#discussion_r46997515
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/RuleExecutor.scala
---
@@ -56,12 +55,16 @@ abstract class RuleExecutor[TreeType <: TreeNode[_]]
extends Logging {
case class FixedPoint(maxIterations: Int) extends Strategy
/** A batch of rules. */
- protected case class Batch(name: String, strategy: Strategy, rules:
Rule[TreeType]*)
+ case class Batch[TreeType <: TreeNode[_]]
--- End diff --
I'd probably just make these top level classes if we are going to pull them
out. There is not a lot of stuff in the `rules` package.
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