mayankshriv commented on a change in pull request #5075: Fix bug in DISTINCT
for queries that return empty response
URL: https://github.com/apache/incubator-pinot/pull/5075#discussion_r379987405
##########
File path:
pinot-core/src/main/java/org/apache/pinot/core/query/aggregation/function/DistinctAggregationFunction.java
##########
@@ -139,6 +140,12 @@ public void aggregate(int length, AggregationResultHolder
aggregationResultHolde
@Override
public DistinctTable extractAggregationResult(AggregationResultHolder
aggregationResultHolder) {
+ if (_distinctTable == null) {
+ ColumnDataType[] columnDataTypes = new
ColumnDataType[_columnNames.length];
+ Arrays.fill(columnDataTypes, ColumnDataType.STRING);
Review comment:
+1
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