Aireed opened a new issue, #3791:
URL: https://github.com/apache/amoro/issues/3791

   ### Description
   
   **Use case:**
   in some produce case, we only need to optimize the lastest n partitions. the 
old partition will be override by offline data sync.
   for example  offline data repair。
   
   **how to use:**
   1、for hidden partition, support self-optimizing.filter = 
'pt=max(days(pt),5)' 
   2、for partition, support self-optimizing.filter = 'pt=max(pt,5)'
   
   ### Use case/motivation
   
   Parse the functions in the expression and return the specified Iceberg 
filter expression.
   
   
   ### Describe the solution
   
   Parse the functions in the expression and return the specified Iceberg 
filter expression.
   
   
   
   ### Subtasks
   
   _No response_
   
   ### Related issues
   
   _No response_
   
   ### Are you willing to submit a PR?
   
   - [x] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [x] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


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