Jackie-Jiang commented on code in PR #11604:
URL: https://github.com/apache/pinot/pull/11604#discussion_r1336515237


##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/realtime/impl/json/MutableJsonIndexImpl.java:
##########
@@ -106,8 +106,11 @@ private void addFlattenedRecords(List<Map<String, String>> 
records) {
         // Put both key and key-value into the posting list. Key is useful for 
checking if a key exists in the json.
         String key = entry.getKey();
         _postingListMap.computeIfAbsent(key, k -> new 
RoaringBitmap()).add(_nextFlattenedDocId);
-        String keyValue = key + JsonIndexCreator.KEY_VALUE_SEPARATOR + 
entry.getValue();
-        _postingListMap.computeIfAbsent(keyValue, k -> new 
RoaringBitmap()).add(_nextFlattenedDocId);
+        int length = _jsonIndexConfig.getMaxValueLength();

Review Comment:
   @chenboat I totally understand the intention, and I agree we can make the 
longest allowed value configurable. I'm proposing saving even more space when 
the value is longer than the threshold by not storing the value at all because 
it is not queryable anyway.



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