agavra commented on code in PR #9767:
URL: https://github.com/apache/pinot/pull/9767#discussion_r1018254481
##########
pinot-query-runtime/src/main/java/org/apache/pinot/query/runtime/operator/AggregateOperator.java:
##########
@@ -53,17 +56,32 @@
* If the input is single value, the output type will be input type.
Otherwise, the output type will be double.
*/
public class AggregateOperator extends BaseOperator<TransferableBlock> {
+
+ interface Merger extends BiFunction<Object, Object, Object> {
+ }
+
private static final String EXPLAIN_NAME = "AGGREGATE_OPERATOR";
+ private static final Map<String, Merger> MERGERS = ImmutableMap
Review Comment:
IMO it's nice to have constants at the top of the file, but don't feel
strongly. I'll move it
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