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  1. Hive
  2. HIVE-2020

Create a separate namespace for Hive variables

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: Query Processor
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Support for variable substitution was added in HIVE-1096. However, variable substitution was implemented by reusing the HiveConf namespace, so there is no separation between Hive configuration properties and Hive variables.

      This ticket encompasses the following enhancements:

      • Create a separate namespace for managing Hive variables.
      • Add support for setting variables on the command line via '-hivevar x=y'
      • Add support for setting variables through the CLI via 'set hivevar:x=y'
      • Add support for referencing variables in statements using either '${hivevar:var_name}' or '${var_name}'
      • Provide a means for differentiating between hiveconf, hivevar, system, and environment properties in the output of 'set -v'

        Attachments

        1. HIVE-2020-3.patch
          16 kB
          Vaibhav Aggarwal
        2. HIVE-2020-2.patch
          12 kB
          Vaibhav Aggarwal
        3. HIVE-2020.patch
          6 kB
          Vaibhav Aggarwal

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            People

            • Assignee:
              vaggarw Vaibhav Aggarwal Assign to me
              Reporter:
              cwsteinbach Carl Steinbach

              Dates

              • Created:
                Updated:
                Resolved:

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