wirybeaver commented on code in PR #12242:
URL: https://github.com/apache/pinot/pull/12242#discussion_r1446742933


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/segment/index/readers/forward/VarByteChunkSVForwardIndexReader.java:
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@@ -85,6 +85,10 @@ private String getStringCompressed(int docId, 
ChunkReaderContext context) {
 
     int length = valueEndOffset - valueStartOffset;
     byte[] bytes = _reusableBytes.get();
+    if (bytes.length < _lengthOfLongestEntry) {

Review Comment:
   The V4 writer allocate byte[] in every function call to avoid this problem. 
I am also consider about moving the byte[] to ReaderContext class so that each 
Column per query can share the same byte[]. And after query is finished, the 
ReaderContext will be closed.



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