[GitHub] [pinot] Jackie-Jiang commented on pull request #8228: Early terminate orderby when columns already sorted

[GitBox <gi...@apache.org>]

Jackie-Jiang commented on pull request #8228:
URL: https://github.com/apache/pinot/pull/8228#issuecomment-1047343041


   > At the moment, getNexBlock has a conditional split for all/partially ordered columns (where computeAllOrdered is where all columns in select are also in the order by if I understand correctly )
   > 
   > If we introduce a case for when all orderBy columns are pre-sorted (early termination case) then wouldn't we again have a allOrdered/partialOrdered case within that as well?
   
   No. If all the order-by columns are sorted, we can simply pick the first `limit` docs without worrying about the optimization of partialOrdered case.


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