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Posted to issues@spark.apache.org by "Anton Okolnychyi (Jira)" <ji...@apache.org> on 2020/12/01 11:52:00 UTC

[jira] [Created] (SPARK-33623) Add canDeleteWhere to SupportsDelete

Anton Okolnychyi created SPARK-33623:
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             Summary: Add canDeleteWhere to SupportsDelete
                 Key: SPARK-33623
                 URL: https://issues.apache.org/jira/browse/SPARK-33623
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.1.0
            Reporter: Anton Okolnychyi


The only way to support delete statements right now is to implement \{{SupportsDelete}}. According to its Javadoc, that interface is meant for cases when we can delete data without much effort (e.g. like deleting a complete partition in a Hive table). It is clear we need a more sophisticated API for row-level deletes. That's why it would be beneficial to add a method to \{{SupportsDelete}} so that Spark can check if a source can easily delete data with just having filters or it will need a full rewrite later on. This way, we have more control in the future.



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