alamb commented on issue #3463:
URL: 
https://github.com/apache/arrow-datafusion/issues/3463#issuecomment-1418150220

   @Dandandan  ❤️  thank you
   
   I know of three major items:
   
   1. Enable page index by default 
https://github.com/apache/arrow-datafusion/issues/4085
   2. Ensure that enabling filter pushdown by default doesn't cause performance 
regressions in cases where the filter isn't very selective. I know @tustvold  
had some thoughts in this area.
   
   For item 1, I tried a few times, but am currently blocked by  
https://github.com/apache/arrow-datafusion/issues/5104 and haven't had time to 
return to it
   
   For item 2, I think someone needs to look at some benchmark results (perhaps 
TPCH) and figure out what we can do to avoid the regression (or measure and 
determine it isn't significant)
   
   I keep hoping to have time to work on item 1, as I am pretty sure I know 
what the problem is, but other things keep coming up :( 
   
   I haven't had a chance to work on 2 yet


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