Dandandan commented on PR #16433:
URL: https://github.com/apache/datafusion/pull/16433#issuecomment-2985955904

   It seems in some cases it's faster:
   
   ```
   ┏━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
   ┃ Query        ┃ topk-dynamic-filter ┃ topk-filters ┃        Change ┃
   ┡━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
   │ Q1           │            16.17 ms │     16.89 ms │     no change │
   │ Q2           │            27.60 ms │     20.22 ms │ +1.36x faster │
   │ Q3           │            55.41 ms │     54.45 ms │     no change │
   │ Q4           │            22.26 ms │     22.07 ms │     no change │
   │ Q5           │            11.98 ms │     12.10 ms │     no change │
   │ Q6           │            26.25 ms │     27.26 ms │     no change │
   │ Q7           │            71.56 ms │     67.86 ms │ +1.05x faster │
   │ Q8           │            90.02 ms │     46.15 ms │ +1.95x faster │
   │ Q9           │            61.64 ms │     58.91 ms │     no change │
   │ Q10          │           101.13 ms │     98.24 ms │     no change │
   │ Q11          │            58.43 ms │     56.85 ms │     no change │
   └──────────────┴─────────────────────┴──────────────┴───────────────┘
   ```
   
   And in other cases it's mixed / slower:
   
   ```┏━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
   ┃ Query        ┃ topk-dynamic-filter ┃ topk-filters ┃        Change ┃
   ┡━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
   │ QQuery 0     │            14.00 ms │     13.07 ms │ +1.07x faster │
   │ QQuery 1     │            20.55 ms │     18.81 ms │ +1.09x faster │
   │ QQuery 2     │            56.58 ms │     56.33 ms │     no change │
   │ QQuery 3     │            56.30 ms │     54.94 ms │     no change │
   │ QQuery 4     │           468.00 ms │    516.71 ms │  1.10x slower │
   │ QQuery 5     │           626.85 ms │    659.29 ms │  1.05x slower │
   │ QQuery 6     │            15.31 ms │     15.26 ms │     no change │
   │ QQuery 7     │            30.44 ms │     21.48 ms │ +1.42x faster │
   │ QQuery 8     │           547.48 ms │    569.67 ms │     no change │
   │ QQuery 9     │           744.50 ms │    778.67 ms │     no change │
   │ QQuery 10    │           182.53 ms │    176.03 ms │     no change │
   │ QQuery 11    │           217.10 ms │    190.23 ms │ +1.14x faster │
   │ QQuery 12    │           832.33 ms │    715.38 ms │ +1.16x faster │
   │ QQuery 13    │          1102.37 ms │    914.96 ms │ +1.20x faster │
   │ QQuery 14    │           823.97 ms │    576.94 ms │ +1.43x faster │
   │ QQuery 15    │           574.53 ms │    496.51 ms │ +1.16x faster │
   │ QQuery 16    │          1324.12 ms │   1150.68 ms │ +1.15x faster │
   │ QQuery 17    │          1324.29 ms │   1245.55 ms │ +1.06x faster │
   │ QQuery 18    │          2603.07 ms │   2248.86 ms │ +1.16x faster │
   │ QQuery 19    │            48.17 ms │     49.60 ms │     no change │
   │ QQuery 20    │           978.10 ms │    964.90 ms │     no change │
   │ QQuery 21    │          1021.47 ms │   1050.51 ms │     no change │
   │ QQuery 22    │          1958.07 ms │   1660.81 ms │ +1.18x faster │
   │ QQuery 23    │           760.66 ms │   5353.24 ms │  7.04x slower │
   │ QQuery 24    │           525.78 ms │    342.39 ms │ +1.54x faster │
   │ QQuery 25    │           480.36 ms │    278.59 ms │ +1.72x faster │
   │ QQuery 26    │           542.13 ms │    342.32 ms │ +1.58x faster │
   │ QQuery 27    │          1826.05 ms │   1260.73 ms │ +1.45x faster │
   │ QQuery 28    │         11094.31 ms │  10685.64 ms │     no change │
   │ QQuery 29    │           427.18 ms │    432.16 ms │     no change │
   │ QQuery 30    │           826.43 ms │    539.39 ms │ +1.53x faster │
   │ QQuery 31    │           789.89 ms │    553.49 ms │ +1.43x faster │
   │ QQuery 32    │          2580.93 ms │   2339.06 ms │ +1.10x faster │
   │ QQuery 33    │          2660.40 ms │   2761.14 ms │     no change │
   │ QQuery 34    │          2948.08 ms │   2923.44 ms │     no change │
   │ QQuery 35    │           886.56 ms │    810.35 ms │ +1.09x faster │
   │ QQuery 36    │            18.59 ms │     83.97 ms │  4.52x slower │
   │ QQuery 37    │            18.67 ms │     35.52 ms │  1.90x slower │
   │ QQuery 38    │            18.10 ms │     81.86 ms │  4.52x slower │
   │ QQuery 39    │            17.89 ms │    135.04 ms │  7.55x slower │
   │ QQuery 40    │            18.30 ms │     27.70 ms │  1.51x slower │
   │ QQuery 41    │            18.15 ms │     26.07 ms │  1.44x slower │
   │ QQuery 42    │            17.78 ms │     22.56 ms │  1.27x slower │
   └──────────────┴─────────────────────┴──────────────┴───────────────┘
   ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
   ```


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