xy2953396112 commented on a change in pull request #2241:
URL: https://github.com/apache/calcite/pull/2241#discussion_r517118764
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File path: core/src/main/java/org/apache/calcite/plan/SubstitutionVisitor.java
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@@ -1931,6 +1931,22 @@ public static MutableRel
unifyAggregates(MutableAggregate query,
final List<AggregateCall> aggregateCalls = new ArrayList<>();
for (AggregateCall aggregateCall : query.aggCalls) {
if (aggregateCall.isDistinct()) {
+ if (aggregateCall.getArgList().size() == 1) {
+ int aggIndex = aggregateCall.getArgList().get(0);
+ if (target.groupSet.asSet().contains(aggIndex)) {
Review comment:
The aggregate function containing the distinct keyword has only one
parameter. Check the parameters here.
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