snleee commented on code in PR #10011:
URL: https://github.com/apache/pinot/pull/10011#discussion_r1053787239
##########
pinot-core/src/main/java/org/apache/pinot/core/query/aggregation/function/CovarianceAggregationFunction.java:
##########
@@ -55,6 +56,9 @@ public class CovarianceAggregationFunction implements
AggregationFunction<Covari
protected final boolean _isSample;
public CovarianceAggregationFunction(List<ExpressionContext> arguments,
boolean isSample) {
+ if (arguments.size() != 2) {
+ throw new BadQueryRequestException("Atleast two expressions need to be
provided to calculate covariance");
Review Comment:
`Atleast` -> `At least` ?
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