jerqi commented on PR #294:
URL: 
https://github.com/apache/incubator-uniffle/pull/294#issuecomment-1326977736

   > > > > I have a question that the MinMax range is task id min max? @jerqi 
Not blockId?
   > > > 
   > > > 
   > > > And why not directly use the `taskIdBitmap` to filter most data ? 
Especially for AQE
   > > > Do you mind I pick up this ticket to improve the AQE skew performance? 
If you hope this also could support multiple replicas, you could go on. 
@xianjingfeng
   > > 
   > > 
   > > Bitmap is ok. We have concern about the size of bitmap. It need some 
tests.
   > 
   > The size of taskIdsBitmap shoud be small. Actually, it only contains the 
limited task ids.
   
   1w tasks will occupy 1k memory.


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