huaxingao commented on code in PR #36092:
URL: https://github.com/apache/spark/pull/36092#discussion_r846583474


##########
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/PushDownUtils.scala:
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@@ -127,7 +131,11 @@ object PushDownUtils extends PredicateHelper {
   }
 
   /**
-   * Pushes down top N to the data source Scan
+   * Pushes down top N to the data source Scan.
+   *
+   * @return the tuple of Boolean. The first Boolean value represents whether 
to push down, and
+   *         the second Boolean value represents whether to push down 
partially which means to
+   *         keep the `Sort` and `Limit`.

Review Comment:
   same comment as the above



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