gortiz commented on PR #8979:
URL: https://github.com/apache/pinot/pull/8979#issuecomment-1234453883

   These are the results I'm having with the last version. It seems that the 
descending version is slower than in the first attempts. It may be due to the 
incorrect behaviors that were detected by @Jackie-Jiang, but it may also be 
some implementation inefficiencies. I'll will try to study that a bit
   
   ```
   Benchmark                                    (_numRows)  
(_primaryRepetitions)  (_scenario)  (_skipOptimization)  Mode  Cnt    Score    
Error  Units
   BenchmarkOrderByQueries.sortedAsc               1500000                      
1     EXP(0.5)                 true  avgt    5   36.699 ±  1.108  ms/op
   BenchmarkOrderByQueries.sortedAsc               1500000                      
1     EXP(0.5)                false  avgt    5    1.349 ±  0.091  ms/op
   BenchmarkOrderByQueries.sortedAsc               1500000                   
1000     EXP(0.5)                 true  avgt    5   29.210 ±  1.966  ms/op
   BenchmarkOrderByQueries.sortedAsc               1500000                   
1000     EXP(0.5)                false  avgt    5    0.421 ±  0.032  ms/op
   BenchmarkOrderByQueries.sortedAscPartially      1500000                      
1     EXP(0.5)                 true  avgt    5   85.217 ± 11.162  ms/op
   BenchmarkOrderByQueries.sortedAscPartially      1500000                      
1     EXP(0.5)                false  avgt    5    1.460 ±  0.261  ms/op
   BenchmarkOrderByQueries.sortedAscPartially      1500000                   
1000     EXP(0.5)                 true  avgt    5   81.292 ± 25.354  ms/op
   BenchmarkOrderByQueries.sortedAscPartially      1500000                   
1000     EXP(0.5)                false  avgt    5    2.086 ±  0.500  ms/op
   BenchmarkOrderByQueries.sortedDesc              1500000                      
1     EXP(0.5)                 true  avgt    5  352.122 ± 37.947  ms/op
   BenchmarkOrderByQueries.sortedDesc              1500000                      
1     EXP(0.5)                false  avgt    5   14.572 ±  0.771  ms/op
   BenchmarkOrderByQueries.sortedDesc              1500000                   
1000     EXP(0.5)                 true  avgt    5  283.754 ± 12.982  ms/op
   BenchmarkOrderByQueries.sortedDesc              1500000                   
1000     EXP(0.5)                false  avgt    5    9.702 ±  2.364  ms/op
   BenchmarkOrderByQueries.sortedDescPartially     1500000                      
1     EXP(0.5)                 true  avgt    5  443.211 ± 53.459  ms/op
   BenchmarkOrderByQueries.sortedDescPartially     1500000                      
1     EXP(0.5)                false  avgt    5   71.102 ± 64.952  ms/op
   BenchmarkOrderByQueries.sortedDescPartially     1500000                   
1000     EXP(0.5)                 true  avgt    5  623.616 ± 45.834  ms/op
   BenchmarkOrderByQueries.sortedDescPartially     1500000                   
1000     EXP(0.5)                false  avgt    5   92.627 ±  9.508  ms/op
   
   ```
   


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