iverase commented on a change in pull request #607:
URL: https://github.com/apache/lucene/pull/607#discussion_r786980842
##########
File path: lucene/core/src/java/org/apache/lucene/util/bkd/BKDReader.java
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@@ -105,6 +107,46 @@ public BKDReader(IndexInput metaIn, IndexInput indexIn,
IndexInput dataIn) throw
}
this.packedIndex = indexIn.slice("packedIndex", indexStartPointer,
numIndexBytes);
this.in = dataIn;
+ this.isTreeBalanced = isTreeBalanced();
+ }
+
+ private boolean isTreeBalanced() throws IOException {
+ if (version >= BKDWriter.VERSION_META_FILE) {
+ // Since lucene 8.6 all trees are unbalanced.
+ return false;
+ }
+ if (config.numDims > 1) {
+ // High dimensional tree in pre-8.6 indices are balanced.
+ return true;
+ }
+ // count of the last node for unbalanced trees
+ final int lastLeafNodePointCount = Math.toIntExact(pointCount %
config.maxPointsInLeafNode);
Review comment:
done in 3490046
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