[GitHub] [incubator-doris] wangbo commented on issue #4788: [Proposal] Use Rollup's Aggregation Key as Rollup's Bucket Key

[GitBox <gi...@apache.org>]

wangbo commented on issue #4788:
URL: https://github.com/apache/incubator-doris/issues/4788#issuecomment-716391152


   >why not give the right to the user, and user can set the distribute key of rollup table, instead of the aggreate key, so that
   user can control the location of data, cause the aggreate key may improve the performance of bigmap union Scenes, but may not cause the improvement of performance in other Scenes
   
   @Yao-MR  This is more flexible, and I also plan to do as you say.
   Later I'll provide user interface design, please review as you have time.
   But I'm more curious about your real usage scenarios for ```user can control the location of data```


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