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Posted to commits@pinot.apache.org by GitBox <gi...@apache.org> on 2022/11/07 20:49:49 UTC

[GitHub] [pinot] walterddr commented on issue #9748: [multistage] ShuffleRewriteVisitor Can Allow Shuffle to be Skipped if Data is on Different Servers

walterddr commented on issue #9748:
URL: https://github.com/apache/pinot/issues/9748#issuecomment-1306172169

   +1. the only reason why this util is so simple rely on 2 pre-conditions.
   
   1. all leaf stages are assumed unpartitioned
   2. all intermediate stages assigned with the same set of server (in fact right now ALL server within the DEFAULT tenant)
   
   any of these 2 assumption break could cause skipShuffle issue. 
   
   CC @agavra 


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