nizarhejazi commented on code in PR #9086:
URL: https://github.com/apache/pinot/pull/9086#discussion_r935078690
##########
pinot-core/src/main/java/org/apache/pinot/core/query/aggregation/function/CountAggregationFunction.java:
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@@ -89,7 +122,33 @@ public void aggregate(int length, AggregationResultHolder
aggregationResultHolde
@Override
public void aggregateGroupBySV(int length, int[] groupKeyArray,
GroupByResultHolder groupByResultHolder,
Map<ExpressionContext, BlockValSet> blockValSetMap) {
- if (blockValSetMap.isEmpty()) {
+ if (blockValSetMap.isEmpty() ||
!blockValSetMap.containsKey(STAR_TREE_COUNT_STAR_EXPRESSION)) {
Review Comment:
@Jackie-Jiang We have three branches:
1- blockValSetMap.isEmpty() for count(*), and no StarTree.
2- !blockValSetMap.containsKey(STAR_TREE_COUNT_STAR_EXPRESSION) for
count(columnName), and no StarTree (please see the ! at the beginning).
Example: count(bigDecimalColumn). Note: we can have count(bigDecimalColumn) and
nullHandling is either enable or not enabled.
3- StarTree.
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