alamb commented on issue #7456:
URL: https://github.com/apache/arrow-rs/issues/7456#issuecomment-3402330208

   Yes, thank you @hhhizzz !
   
   I have been quite busy recently helping @etseidl  get the new parquet 
metadata decoder in. See the following tickets if you are interested
   - https://github.com/apache/arrow-rs/issues/8441
   - https://github.com/apache/arrow-rs/issues/5854
   
   maybe @zhuqi-lucas also has some ideas / time to help as he had several good 
PRs
   
   One thing I tried to do to help here is this PR:
   - https://github.com/apache/arrow-rs/pull/7537
   
   I think the trickiest part of this project is not degrading performance for 
the existing cases where the current `RowSelection` is really good (namely 
representing large contiguous selections)
   
   One thing that @lwwmanning mentioned that works pretty well in Vortex was to 
use a `LazyLock` to hold an alternate predicate representations and computing 
it on demand. 
   
    
   


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