agavra commented on code in PR #9870:
URL: https://github.com/apache/pinot/pull/9870#discussion_r1035233750
##########
pinot-query-planner/src/main/java/org/apache/pinot/query/planner/logical/ShuffleRewriteVisitor.java:
##########
@@ -150,19 +147,11 @@ public Set<Integer> visitMailboxSend(MailboxSendNode
node, Void context) {
@Override
public Set<Integer> visitProject(ProjectNode node, Void context) {
Set<Integer> oldPartitionKeys = node.getInputs().get(0).visit(this,
context);
-
- // all inputs carry over if they're still in the projection result
- Set<Integer> partitionKeys = new HashSet<>();
- for (int i = 0; i < node.getProjects().size(); i++) {
- RexExpression rex = node.getProjects().get(i);
- if (rex instanceof RexExpression.InputRef) {
- if (oldPartitionKeys.contains(((RexExpression.InputRef)
rex).getIndex())) {
- partitionKeys.add(i);
- }
- }
+ if (rexExpressionListContainsAllPartitionKey(node.getProjects(),
oldPartitionKeys)) {
Review Comment:
why is this necessary for project? projects shouldn't change partitioning,
correct?
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