c8679724 opened a new issue, #7193:
URL: https://github.com/apache/iceberg/issues/7193

   ### Feature Request / Improvement
   
   iceberg supports incremental computation based on iceberg tags and data 
changes between tags in computing engines such as spark and presto.
   
   1. To be able to join other tables through these data changes, it is 
necessary to support delete that identifies the data. delete data may cause the 
data of sink to also need delete.
   
   2. Data changes in the joined table can also drive incremental computations 
in business SQL.
   
   ### Query engine
   
   Spark


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