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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