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  1. Hive
  2. HIVE-7971

Support alter table change/replace/add columns for existing partitions

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.14.0
    • Component/s: None
    • Labels:
      None

      Description

      ALTER TABLE CHANGE COLUMN is allowed for tables, but not for partitions. Same for add/replace columns.
      Allowing this for partitions can be useful in some cases. For example, one user has tables with Hive 0.12 Decimal columns, which do not specify precision/scale. To be able to properly read the decimal values from the existing partitions, the column types in the partitions need to be changed to decimal types with precision/scale.

        Attachments

        1. HIVE-7971.branch-13.patch
          52 kB
          Jason Dere
        2. HIVE-7971.3.patch
          47 kB
          Jason Dere
        3. HIVE-7971.2.patch
          40 kB
          Jason Dere
        4. HIVE-7971.1.patch
          25 kB
          Jason Dere

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              • Assignee:
                jdere Jason Dere
                Reporter:
                jdere Jason Dere
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                Dates

                • Created:
                  Updated:
                  Resolved: