flyrain opened a new pull request #3287:
URL: https://github.com/apache/iceberg/pull/3287


   ### Why do we need this PR?
   As #3141 mentioned, vectorized reader does NOT support row-level delete 
currently. This PR adds the support for pos-delete. This implementation 
supports both Spark 2 and Spark 3.
   
   ### Tests added
   I parameterized TestSparkReaderDeletes, so that all tests under class 
TestSparkReaderDeletes now support both vectorized read and non-vectorized read.
   
   ### Future work
   I will add the equality-delete support in a follow-up PR.


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