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Posted to issues@spark.apache.org by "Ryan Blue (Jira)" <ji...@apache.org> on 2020/03/25 22:29:00 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-31255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan Blue updated SPARK-31255:
------------------------------
    Issue Type: New Feature  (was: Bug)

> DataSourceV2: Add metadata columns
> ----------------------------------
>
>                 Key: SPARK-31255
>                 URL: https://issues.apache.org/jira/browse/SPARK-31255
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Ryan Blue
>            Priority: Major
>
> 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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