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  1. Hive
  2. HIVE-348

Provide type information to custom mappers and reducers.

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    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
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    Description

      Either by setting an environment variable with the schema, or (ideally), configurably passing JSON data to custom mappers/reducers. This would be more data to pump into the pipe on each mapper/reducer, but it would be generated on the mapper/reducer, and it may mean much less processing for the custom script (using a fast json library compared to casting each column that needs casting based on the schema).

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-51 Generate and accept JSON as the input-output format from mappers and reducers

          • Major - Major loss of function.
          • Open

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              Unassigned Unassigned
              indigoviolet Venky Iyer
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              Dates

                Created:
                Updated: