[GitHub] [iceberg] rdblue commented on issue #1202: [Question] Do Spark Iceberg module implement Copy On Write Delete and Update?

[GitBox <gi...@apache.org>]

rdblue commented on issue #1202:
URL: https://github.com/apache/iceberg/issues/1202#issuecomment-659015742


   Both Spark 2.4 and Spark 3.0 support dynamic partition overwrite. Spark 3.0 also supports overwrite by expression, although the expression must match all rows in a data file or no rows of a data file, or else it will cause an exception because the granularity of a delete is a whole data file.


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