siddharthteotia commented on a change in pull request #5605:
URL: https://github.com/apache/incubator-pinot/pull/5605#discussion_r445148299



##########
File path: 
pinot-core/src/main/java/org/apache/pinot/core/query/reduce/GroupByDataTableReducer.java
##########
@@ -486,69 +447,44 @@ private void setGroupByResults(BrokerResponseNative 
brokerResponseNative, boolea
       finalResultMaps[i] = finalResultMap;
     }
 
-    int aggregationNumsInFinalResult = 0;
-    for (int i = 0; i < _numAggregationFunctions; i++) {
-      if (aggregationFunctionsSelectStatus[i]) {
-        aggregationNumsInFinalResult++;
-      }
-    }
-
-    if (aggregationNumsInFinalResult > 0) {

Review comment:
       Looks like this piece of code was redundant and that'w why you invoke 
trimming on already computed finalResultMaps in the new code?




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