weizuo93 opened a new pull request #6552:
URL: https://github.com/apache/incubator-doris/pull/6552


   
   ## Proposed changes
   Fix #6551 
   
   `Truncate` operation will create new partition to replace base partition. 
Tablets in new partition would be created based on table default bucket number. 
If the number of tablet for a partition is different from table default bucket 
number, the number of tablet will be different between the new created 
partition and base partition after truncate operation.
   
   In any case, the new partition should hava the same number of tablet as the 
base partition after truncate operation. Tablets in new partition should be 
created based on tablet number of base partition rather than table default 
bucket number for truncate operation.
   
   ## Types of changes
   
   What types of changes does your code introduce to Doris?
   _Put an `x` in the boxes that apply_
   
   - [x] Bugfix (non-breaking change which fixes an issue)
   - [ ] New feature (non-breaking change which adds functionality)
   - [ ] Breaking change (fix or feature that would cause existing 
functionality to not work as expected)
   - [ ] Documentation Update (if none of the other choices apply)
   - [ ] Code refactor (Modify the code structure, format the code, etc...)
   - [ ] Optimization. Including functional usability improvements and 
performance improvements.
   - [ ] Dependency. Such as changes related to third-party components.
   - [ ] Other.
   


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