Details

    • Type: New Feature New Feature
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.7.0
    • Component/s: Query Processor
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      From mailing list:
      --Amazon Elastic MapReduce version of Hive seems to have a nice feature called "Variables." Basically you can define a variable via command-line while invoking hive with -d DT=2009-12-09 and then refer to the variable via $

      {DT}

      within the hive queries. This could be extremely useful. I can't seem to find this feature even on trunk. Is this feature currently anywhere in the roadmap?--

      This could be implemented in many places.
      A simple place to put this is
      in Driver.compile or Driver.run we can do string substitutions at that level, and further downstream need not be effected.

      There could be some benefits to doing this further downstream, parser,plan. but based on the simple needs we may not need to overthink this.

      I will get started on implementing in compile unless someone wants to discuss this more.

      1. hive-1096-20.patch.txt
        22 kB
        Edward Capriolo
      2. hive-1096-15.patch.txt
        22 kB
        Edward Capriolo
      3. hive-1096-15.patch.txt
        17 kB
        Edward Capriolo
      4. hive-1096-12.patch.txt
        15 kB
        Edward Capriolo
      5. hive-1096-11-patch.txt
        12 kB
        Edward Capriolo
      6. hive-1096-10-patch.txt
        12 kB
        Edward Capriolo
      7. 1096-9.diff
        10 kB
        Edward Capriolo
      8. hive-1096-8.diff
        10 kB
        Edward Capriolo
      9. hive-1096-7.diff
        6 kB
        Edward Capriolo
      10. hive-1096-2.diff
        5 kB
        Edward Capriolo
      11. hive-1096.diff
        4 kB
        Edward Capriolo

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            • Assignee:
              Edward Capriolo
              Reporter:
              Edward Capriolo
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              Dates

              • Created:
                Updated:
                Resolved:

                Development