gianm commented on a change in pull request #11917:
URL: https://github.com/apache/druid/pull/11917#discussion_r751776857
##########
File path:
processing/src/main/java/org/apache/druid/query/aggregation/AggregatorFactory.java
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@@ -219,7 +220,13 @@ public AggregatorFactory
getMergingFactory(AggregatorFactory other) throws Aggre
*
* Refer to the {@link ColumnType} javadocs for details on the implications
of choosing a type.
*/
- public abstract ColumnType getType();
+ public ColumnType getColumnType()
+ {
+ if (getType() == ValueType.COMPLEX) {
+ return ColumnType.ofComplex(getComplexTypeName());
Review comment:
getComplexTypeName might not be implemented for aggregators that aren't
ingestible (i.e. no ComplexMetricSerde), so this should catch
UnsupportedOperationException and treat it as an unknown complex type.
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