alamb commented on PR #15770:
URL: https://github.com/apache/datafusion/pull/15770#issuecomment-2971173365

   > > QQuery 25    │   380.03 ms │            279.23 ms │ +1.36x faster
   > 
   > ```sql
   > SELECT SearchPhrase FROM hits WHERE SearchPhrase <> '' ORDER BY 
SearchPhrase LIMIT 10;
   > ```
   > 
   > Looks like it might be real!
   > 
   > And obviously we expect Q23 to get a huge bump once we enable filter 
pushdown...
   > 
   > I think the only thing left here is for someone to review in detail 😄
   
   I can reproduce this improvement locally.
   
   I tested using 
   ```shell
   $ cat q25.sql
   SELECT "SearchPhrase" FROM hits WHERE "SearchPhrase" <> '' ORDER BY 
"SearchPhrase" LIMIT 10;
   $ ./datafusion-cli-topk-dynamic-filters -f q25.sql
   ...
   ```
   
   main (merge-base)
   ```
   Elapsed 0.209 seconds.
   Elapsed 0.214 seconds.
   Elapsed 0.210 seconds.
   ```
   
   This branch
   ```
   Elapsed 0.173 seconds.
   Elapsed 0.182 seconds.
   Elapsed 0.178 seconds.
   ```
   


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