[GitHub] [druid] clintropolis commented on pull request #12277: add support for 'front coded' string dictionaries for smaller string columns

[GitBox]

clintropolis commented on PR #12277:
URL: https://github.com/apache/druid/pull/12277#issuecomment-1255526542

   ran taxi set again with mixed types, it gets pretty good improvements from 
the date/time strings:
   <img width="1215" alt="Screen Shot 2022-09-21 at 8 04 17 PM" 
src="https://user-images.githubusercontent.com/1577461/191846552-b1300128-faca-452e-895d-a1dc62277d67.png";>
   
   also sometimes the improvement is not a lot, pretty small overlap in this 
one:
   <img width="1242" alt="Screen Shot 2022-09-21 at 8 13 07 PM" 
src="https://user-images.githubusercontent.com/1577461/191846706-a6863a64-ece3-4bc6-8b94-cd3da3e1dbf2.png";>
   
   


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