mihaibudiu commented on PR #4619:
URL: https://github.com/apache/calcite/pull/4619#issuecomment-3503814440

   > This is still a draft. Should this work continue?
   
   I think this is great. If it holds the promise to solve many of the current 
decorrelator limits, we should adopt it. 
   Do you see any downsides?
   
   As I commented elsewhere, one problem I foresee is that the UNNEST array 
operation cannot be represented without a Correlate node in general, so a new 
Rel node may need to be introduced to be able to handle such plans. But this 
can also be done later.


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