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  1. Hive
  2. HIVE-17282

OrcRawRecordMerger collapseEvents mode should not produce delete events

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 3.0.0
    • Fix Version/s: None
    • Component/s: Transactions
    • Labels:
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    • Target Version/s:

      Description

      it made sense before HIVE-17089 where we had multiple versions of the same row and this mode produce the latest one.
      Now outputting delete events is only need for compaction and VectorizedOrcAcidRowBatchReader. The latter only reads delete_delta and OrcInputFormat skips all delete events from OrcRawRecordMerger

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          is blocked by

          New Feature - A new feature of the product, which has yet to be developed. HIVE-17089 make acid 2.0 the default

          • Major - Major loss of function.
          • Closed

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              • Assignee:
                Unassigned
                Reporter:
                ekoifman Eugene Koifman
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                Dates

                • Created:
                  Updated: