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  1. Hive
  2. HIVE-4396

Create a efficient method to create a deep copy of a mapredwork

    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Query Processor
    • Labels:
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      Description

      In many optimization steps, we create a copy of the query plan and then change some parts of it.
      Currently, the only reliable way to do so is to serialize and deserialize it, which is fairly expensive.
      It would be very useful to have a cheaper method to do the same.

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              • Assignee:
                Unassigned
                Reporter:
                namit Namit Jain
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                Dates

                • Created:
                  Updated: