Jackie-Jiang commented on a change in pull request #6690:
URL: https://github.com/apache/incubator-pinot/pull/6690#discussion_r596257840
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File path:
pinot-core/src/main/java/org/apache/pinot/core/operator/combine/MinMaxValueBasedSelectionOrderByCombineOperator.java
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@@ -54,18 +53,14 @@
*/
@SuppressWarnings({"rawtypes", "unchecked"})
public class MinMaxValueBasedSelectionOrderByCombineOperator extends
BaseCombineOperator {
+ private static final Logger LOGGER =
LoggerFactory.getLogger(MinMaxValueBasedSelectionOrderByCombineOperator.class);
Review comment:
You might want to change the logger in `BaseCombineOperator` to private?
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/operator/combine/BaseCombineOperator.java
##########
@@ -75,13 +74,6 @@ public BaseCombineOperator(List<Operator> operators,
QueryContext queryContext,
_futures = new Future[_numThreads];
}
- public BaseCombineOperator(List<Operator> operators, QueryContext
queryContext, ExecutorService executorService,
Review comment:
I would recommend keeping a different constructor for group-by combine
operators and avoid creating the blocking queue because it is not needed. In
the future, we might want to change the group-by combine operators to two
phases merge like other combine operators, then we can remove the additional
constructor
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