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Posted to issues@spark.apache.org by "Ryan Blue (Jira)" <ji...@apache.org> on 2020/03/25 22:28:00 UTC

[jira] [Created] (SPARK-31255) DataSourceV2: Add metadata columns

Ryan Blue created SPARK-31255:
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             Summary: DataSourceV2: Add metadata columns
                 Key: SPARK-31255
                 URL: https://issues.apache.org/jira/browse/SPARK-31255
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Ryan Blue


DSv2 should support reading additional metadata columns that are not in a table's schema. This allows users to project metadata like Kafka's offset, timestamp, and partition. It also allows other sources to expose metadata like file and row position.



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