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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/10/12 06:40:00 UTC

[jira] [Commented] (SPARK-40587) SELECT * shouldn't be empty project list in proto.

    [ https://issues.apache.org/jira/browse/SPARK-40587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17616220#comment-17616220 ] 

Apache Spark commented on SPARK-40587:
--------------------------------------

User 'amaliujia' has created a pull request for this issue:
https://github.com/apache/spark/pull/38218

> SELECT * shouldn't be empty project list in proto.
> --------------------------------------------------
>
>                 Key: SPARK-40587
>                 URL: https://issues.apache.org/jira/browse/SPARK-40587
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Connect
>    Affects Versions: 3.4.0
>            Reporter: Rui Wang
>            Assignee: Rui Wang
>            Priority: Major
>             Fix For: 3.4.0
>
>
> Current proto uses empty project list for `SELECT *`.  However, this is an implicit way that it is hard to differentiate `not set` and `set but empty`. For longer term proto compatibility, we should always use explicit fields for passing through information.    



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