fx19880617 commented on a change in pull request #6109:
URL: https://github.com/apache/incubator-pinot/pull/6109#discussion_r501426164
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File path:
pinot-core/src/main/java/org/apache/pinot/core/startree/operator/StarTreeFilterOperator.java
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@@ -267,19 +206,19 @@ private StarTreeResult traverseStarTree() {
// Use BFS to traverse the star tree
Queue<SearchEntry> queue = new LinkedList<>();
queue.add(new SearchEntry(starTreeRootNode,
_predicateEvaluatorsMap.keySet(), _groupByColumns));
- while (!queue.isEmpty()) {
- SearchEntry searchEntry = queue.remove();
+ SearchEntry searchEntry;
+ while ((searchEntry = queue.poll()) != null) {
Review comment:
got it
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