huanghanyu-vungle opened a new issue, #6885:
URL: https://github.com/apache/iceberg/issues/6885

   ### Query engine
   
   query engine: spark 
   
   ### Question
   
    If multiple processes modify an iceberg table at the same time,  What 
method does iceberg use to ensure the correctness of data writing,Can 100% of 
the data written by different jobs not be lost?
   
   For example:
   
   I have two spark jobs,use spark.sql("merge into ...") in parallel, How to 
ensure that the data written to each other is 100% correct,what method does 
iceberg use to do this
   
   thanks


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