gaoyangxiaozhu commented on PR #5856:
URL: 
https://github.com/apache/incubator-gluten/pull/5856#issuecomment-2131029538

   > > Right now, we only support for samling without replaceme
   > 
   > Will Sampling with replacement (withReplacement is set to true) fallback? 
how complex if we add support to Velox? how useful it is?
   
   sample with relpacement allow pick up same row multiple times, that means it 
actually not simple filter but re-generating the data set,  that is not worked 
by simple convert to a filter rand expression. I don't yet figur out a good way 
to supprot that part unless to make a new `sampleNode` in Velox side.


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