LuciferYang commented on code in PR #50366:
URL: https://github.com/apache/spark/pull/50366#discussion_r2010124552


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/rules/QueryExecutionMetering.scala:
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@@ -108,6 +108,12 @@ case class QueryExecutionMetering() {
   }
 }
 
+object QueryExecutionMetering {
+  private val _queryExecutionMeter = QueryExecutionMetering()
+
+  def queryExecutionMeter: QueryExecutionMetering = _queryExecutionMeter

Review Comment:
   Is this in preparation for other subsequent PRs? Will `queryExecutionMeter` 
be invoked/used elsewhere?
   
   How about defining it directly as 
   
   
   ```
   object QueryExecutionMetering {
     val queryExecutionMeter = QueryExecutionMetering()
   }
   ```



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