walterddr commented on code in PR #9100:
URL: https://github.com/apache/pinot/pull/9100#discussion_r937215921
##########
pinot-query-planner/src/main/java/org/apache/pinot/query/planner/logical/StagePlanner.java:
##########
@@ -105,30 +113,128 @@ private StageNode walkRelPlan(RelNode node, int
currentStageId) {
RelDistribution.Type exchangeType = distribution.getType();
// 2. make an exchange sender and receiver node pair
- StageNode mailboxReceiver = new MailboxReceiveNode(currentStageId,
nextStageRoot.getDataSchema(),
- nextStageRoot.getStageId(), exchangeType);
- StageNode mailboxSender = new
MailboxSendNode(nextStageRoot.getStageId(), nextStageRoot.getDataSchema(),
- mailboxReceiver.getStageId(), exchangeType, exchangeType ==
RelDistribution.Type.HASH_DISTRIBUTED
- ? new FieldSelectionKeySelector(distributionKeys) : null);
+ KeySelector<Object[], Object[]> keySelector = exchangeType ==
RelDistribution.Type.HASH_DISTRIBUTED
+ ? new FieldSelectionKeySelector(distributionKeys) : null;
Review Comment:
good point. i will add the comments.
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