cloud-fan commented on a change in pull request #35924:
URL: https://github.com/apache/spark/pull/35924#discussion_r832139049
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/AQEUtils.scala
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@@ -57,4 +58,24 @@ object AQEUtils {
}
case _ => Some(UnspecifiedDistribution)
}
+
+ // Analyze the given plan and calculate the required ordering of this plan
w.r.t. the
+ // user-specified sort.
+ def getRequiredOrdering(p: SparkPlan): Seq[SortOrder] = p match {
+ case f: FilterExec => getRequiredOrdering(f.child)
Review comment:
Let's put the similar code comments in `getRequiredDistribution`:
```
// User-specified repartition is only effective when it's the root node, or
under
...
```
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