beyond1920 opened a new pull request, #10980:
URL: https://github.com/apache/hudi/pull/10980

   ### Change Logs
   Avoid unnecessary rewriting when copy old data from old base to new base 
file to improve compaction performance.
   See more detail in 
[HUDI-7578](https://issues.apache.org/jira/browse/HUDI-7578) or 
[issue#10978](https://github.com/apache/hudi/issues/10978).
   
   ### Impact
   
   Improve the compact performance.
   
   ### Risk level (write none, low medium or high below)
   
   None
   
   ### Documentation Update
   
   None
   
   ### Contributor's checklist
   
   - [ ] Read through [contributor's 
guide](https://hudi.apache.org/contribute/how-to-contribute)
   - [ ] Change Logs and Impact were stated clearly
   - [ ] Adequate tests were added if applicable
   - [ ] CI passed
   


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