rbalamohan opened a new issue, #6604:
URL: https://github.com/apache/iceberg/issues/6604

   ### Apache Iceberg version
   
   0.14.0
   
   ### Query engine
   
   Spark
   
   ### Please describe the bug 🐞
   
   Without repartitioning, there is a chance of creating way too many files in 
merge operation. It will be good to introduce repartitioning in 
MergeIntoIcebergTable. This should help in reducing the number of files that 
are created at the end of the job. Kind of similar to 
"hive.optimize.sort.dynamic.partition.threshold" parameter.
   


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