alamb commented on PR #5099:
URL: 
https://github.com/apache/arrow-datafusion/pull/5099#issuecomment-1541031817

   So I reran the tpch (against parquet at scale factor 1) benchmarks and 
things on this branch now look good (a 10% boost):
   
   ```text
   ━━━━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
   ┃ Query        ┃      tpch ┃      tpch ┃        Change ┃
   ┡━━━━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
   │ QQuery 1     │ 3465.13ms │ 3433.85ms │     no change │
   │ QQuery 2     │  438.03ms │  323.74ms │ +1.35x faster │
   │ QQuery 3     │  384.57ms │  360.75ms │ +1.07x faster │
   │ QQuery 4     │  199.64ms │  191.11ms │     no change │
   │ QQuery 5     │  522.11ms │  495.44ms │ +1.05x faster │
   │ QQuery 6     │  204.05ms │  196.06ms │     no change │
   │ QQuery 7     │ 1060.32ms │  881.93ms │ +1.20x faster │
   │ QQuery 8     │  560.98ms │  510.02ms │ +1.10x faster │
   │ QQuery 9     │ 1009.24ms │  919.41ms │ +1.10x faster │
   │ QQuery 10    │  581.56ms │  572.98ms │     no change │
   │ QQuery 11    │  291.34ms │  279.62ms │     no change │
   │ QQuery 12    │  325.47ms │  311.11ms │     no change │
   │ QQuery 13    │ 1143.71ms │ 1034.17ms │ +1.11x faster │
   │ QQuery 14    │  285.41ms │  267.80ms │ +1.07x faster │
   │ QQuery 15    │  239.13ms │  238.92ms │     no change │
   │ QQuery 16    │  279.67ms │  276.82ms │     no change │
   │ QQuery 17    │ 3291.60ms │ 2737.73ms │ +1.20x faster │
   │ QQuery 18    │ 3378.74ms │ 3005.48ms │ +1.12x faster │
   │ QQuery 19    │  536.40ms │  498.52ms │ +1.08x faster │
   │ QQuery 20    │ 1081.41ms │  989.04ms │ +1.09x faster │
   │ QQuery 21    │ 1588.62ms │ 1447.42ms │ +1.10x faster │
   │ QQuery 22    │  183.83ms │  167.69ms │ +1.10x faster │
   └──────────────┴───────────┴───────────┴───────────────┘
   ```


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