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Posted to issues@hive.apache.org by "Stamatis Zampetakis (Jira)" <ji...@apache.org> on 2025/05/09 09:52:00 UTC

[jira] [Created] (HIVE-28948) Drop obsolete ROWOFFSET virtual column and related code

Stamatis Zampetakis created HIVE-28948:
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             Summary: Drop obsolete ROWOFFSET virtual column and related code
                 Key: HIVE-28948
                 URL: https://issues.apache.org/jira/browse/HIVE-28948
             Project: Hive
          Issue Type: Task
          Components: HiveServer2, SQL
    Affects Versions: 4.0.1
            Reporter: Stamatis Zampetakis
            Assignee: Stamatis Zampetakis


[ROWOFFSET|https://github.com/apache/hive/blob/174ac6215a2b70c655d3dcfed3dc0001ecb97b9b/ql/src/java/org/apache/hadoop/hive/ql/metadata/VirtualColumn.java#L49] virtual column was introduced for supporting bitmap indexing (HIVE-1803) but indexing support has been removed by HIVE-18448. At the moment there are no real-use cases exercising this virtual column and there are no test cases either.

Moreover, the presence of the column is controlled by hive.exec.rowoffset configuration property that has been by default set to false since it's introduction to the project.



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