Hive
  1. Hive
  2. HIVE-2845

Add support for index joins in Hive

    Details

      Description

      Hive supports indexes, which are used for filters currently.

      It would be very useful to add support for index-based joins in Hive.
      If 2 tables A and B are being joined, and an index exists on the join key of A,
      B can be scanned (by the mappers), and for each row in B, a lookup for the corresponding row in A can be performed.
      This can be very useful for some usecases.

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          • Assignee:
            Unassigned
            Reporter:
            Namit Jain
          • Votes:
            4 Vote for this issue
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            19 Start watching this issue

            Dates

            • Created:
              Updated:

              Development