ercsonusharma commented on PR #3418:
URL: https://github.com/apache/solr/pull/3418#issuecomment-3299328167

   > I have doubts that it makes sense to include "Way 1" if, I imagine, it 
increases the complexity/documentation matters and more fundamentally... why 
would someone choose it.
   
   I don't think it introduces any additional complexity in terms of code or 
documentation (adding a parameter combiner.method), rather it reuses several 
piece of code. 
   IMO, If the data is independently sharded and shard-level scoring doesn't 
matter in overall query relevance, it may not make sense to first combine shard 
results based on their original scores and then apply RRF per query (as done in 
Way 2). In such cases, users may prefer Way 1.


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