jihoonson commented on a change in pull request #9076: variance aggregator
support for double columns
URL: https://github.com/apache/druid/pull/9076#discussion_r378020369
##########
File path:
extensions-core/stats/src/main/java/org/apache/druid/query/aggregation/variance/VarianceAggregatorFactory.java
##########
@@ -304,4 +314,19 @@ public int hashCode()
return Objects.hash(fieldName, name, estimator, inputType, isVariancePop);
}
+
+ private String getTypeString(ColumnSelectorFactory metricFactory)
+ {
+ String type = inputType;
+ if (type == null) {
+ ColumnCapabilities capabilities =
metricFactory.getColumnCapabilities(fieldName);
+ if (capabilities != null) {
+ type = StringUtils.toLowerCase(capabilities.getType().name());
+ } else {
+ type = "float";
Review comment:
nit: may be worth to be a static variable.
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