Jackie-Jiang commented on code in PR #11200:
URL: https://github.com/apache/pinot/pull/11200#discussion_r1283604033
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pinot-core/src/main/java/org/apache/pinot/core/operator/docidsets/AndDocIdSet.java:
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@@ -75,13 +77,22 @@ public BlockDocIdIterator iterator() {
List<BitmapBasedDocIdIterator> bitmapBasedDocIdIterators = new
ArrayList<>();
List<ScanBasedDocIdIterator> scanBasedDocIdIterators = new ArrayList<>();
List<BlockDocIdIterator> remainingDocIdIterators = new ArrayList<>();
- for (int i = 0; i < numDocIdSets; i++) {
- BlockDocIdIterator docIdIterator = _docIdSets.get(i).iterator();
+
+ Iterator<BlockDocIdSet> iterator = _docIdSets.iterator();
+ for (int i = 0; iterator.hasNext(); i++) {
+ BlockDocIdSet blockDocIdSet = iterator.next();
+ BlockDocIdIterator docIdIterator = blockDocIdSet.iterator();
allDocIdIterators[i] = docIdIterator;
if (docIdIterator instanceof SortedDocIdIterator) {
sortedDocIdIterators.add((SortedDocIdIterator) docIdIterator);
+ // do not keep holding on to the _docIdRanges since they will occupy
heap space during the query execution
+ _numEntriesScannedInFilter +=
blockDocIdSet.getNumEntriesScannedInFilter();
Review Comment:
Sounds good. Please add some comments explaining this
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