mayankshriv commented on a change in pull request #5832:
URL: https://github.com/apache/incubator-pinot/pull/5832#discussion_r467595198
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/query/aggregation/function/DistinctCountThetaSketchAggregationFunction.java
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@@ -57,11 +61,31 @@
* <p>TODO: For performance concern, use {@code List<Sketch>} as the
intermediate result.
*/
public class DistinctCountThetaSketchAggregationFunction implements
AggregationFunction<Map<String, Sketch>, Long> {
+
+ public enum MergeFunction {
+ SET_UNION, SET_INTERSECT, SET_DIFF;
Review comment:
I think `UNION` is SQL reserved keyword, so Calcite won't parse. If
there's a way around that, I'd also prefer concise names.
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