Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/11064#discussion_r51813585
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
@@ -68,6 +68,7 @@ abstract class Optimizer extends
RuleExecutor[LogicalPlan] {
PushPredicateThroughAggregate,
ColumnPruning,
// Operator combine
+ RepartitionCollapsing,
--- End diff --
Sure; I prefer the "active voice" naming convention that's used by the
other operators. While we're at it, we should probably also rename
`ColumnPruning` to `PruneColumns`.
I guess this renaming is going to break third-party code which relies on
these rule names, but that's fine since we're not doing it in a minor release.
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