chunweilei commented on a change in pull request #2241:
URL: https://github.com/apache/calcite/pull/2241#discussion_r518494152
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File path: core/src/main/java/org/apache/calcite/plan/SubstitutionVisitor.java
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@@ -1930,7 +1929,20 @@ public static MutableRel
unifyAggregates(MutableAggregate query,
}
final List<AggregateCall> aggregateCalls = new ArrayList<>();
for (AggregateCall aggregateCall : query.aggCalls) {
- if (aggregateCall.isDistinct()) {
+ if (aggregateCall.isDistinct() && aggregateCall.getArgList().size() ==
1) {
+ int aggIndex = aggregateCall.getArgList().get(0);
+ if (targetGroupByIndexList.contains(aggIndex)) {
+ int newIndex = targetGroupByIndexList.indexOf(aggIndex);
+ aggregateCalls.add(
Review comment:
if (targetGroupByIndexList.contains(aggIndex)) is not necessary.
You
can do like this:
```
final int newIndex = targetGroupByIndexList.indexOf(aggIndex);
if (newIndex >=0 ) {
......
}
```
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