[jira] [Created] (HIVE-7571) RecordUpdater should read virtual columns from row

["Alan Gates (JIRA)" <ji...@apache.org>]

Alan Gates created HIVE-7571:
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             Summary: RecordUpdater should read virtual columns from row
                 Key: HIVE-7571
                 URL: https://issues.apache.org/jira/browse/HIVE-7571
             Project: Hive
          Issue Type: Sub-task
          Components: Transactions
    Affects Versions: 0.13.0
            Reporter: Alan Gates
            Assignee: Alan Gates


Currently RecordUpdater.update and delete take rowid and original transaction as parameters.  These values are already present in the row as part of the new ROW__ID virtual column in HIVE-7513, and thus can be read by the writer from there.  And the writer will already have to handle skipping ROW__ID when writing, so it needs to be aware of that column anyone.

We could instead read the values from ROW__ID and then remove it from the object inspector in FileSinkOperator, but this will be hard in the vectorization case where rows are being dealt with 10k at a time.

For these reasons it makes more sense to do this work in the writer.



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