XuanGX opened a new issue, #9959:
URL: https://github.com/apache/iceberg/issues/9959

   ### Query engine
   
   Spark
   
   ### Question
   
   I want to use row-level deletes to delete old data in iceberg table quickly. 
   such as :delete from iceberg.table where name='xxx';
   As we all know,"Merge on Read" writes faster than "Copy on Write",But "Merge 
on Read" impacts on query time. so Is there any performance report on iceberg 
like the picture (i think the result is not is incorrect )?
   
![性能验证对比](https://github.com/apache/iceberg/assets/50236659/d25e0344-bc65-45ee-ad18-b3210ca698b3)
   
   blog from:
   
https://aws.amazon.com/cn/blogs/big-data/use-apache-iceberg-in-a-data-lake-to-support-incremental-data-processing/?ref=guptaakashdeep.com


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