itschrispeck commented on PR #12685:
URL: https://github.com/apache/pinot/pull/12685#issuecomment-2698766537
Adding a data point, the runtime check on intermediate results didn't quite
work for us. There were query failures from running different versions
```
Exception: java.lang.ClassCastException: class
org.apache.datasketches.cpc.CpcSketch cannot be cast to class
org.apache.pinot.segment.local.customobject.CpcSketchAccumulator
(org.apache.datasketches.cpc.CpcSketch and
org.apache.pinot.segment.local.customobject.CpcSketchAccumulator are in unnamed
module of loader 'app') at
org.apache.pinot.core.query.aggregation.function.DistinctCountCPCSketchAggregationFunction.merge(DistinctCountCPCSketchAggregationFunction.java:83)
at
org.apache.pinot.core.data.table.IndexedTable.updateRecord(IndexedTable.java:118)
at
org.apache.pinot.core.data.table.IndexedTable.lambda$addOrUpdateRecord$0(IndexedTable.java:101)
at
java.base/java.util.concurrent.ConcurrentHashMap.compute(ConcurrentHashMap.java:1940)
```
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