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  1. Hive
  2. HIVE-195

map-side joins are not supported

          Details

          • Type: New Feature
          • Status: Closed
          • Priority: Major
          • Resolution: Fixed
          • Affects Version/s: None
          • Fix Version/s: 0.4.0
          • Component/s: Query Processor
          • Labels:
            None
          • Hadoop Flags:
            Reviewed
          • Release Note:
            HIVE-195. Map-side join. (Namit Jain via zshao)

            Description

            map-side joins are not supported.

            If all the tables but one are small and can fit in memory, the join should be performed on the map-side. Ideally, it should be all cost-based, but
            to start with, the user should be given an option to specify that he needs a map-side join.

              Attachments

              1. hive.195.9.patch
                963 kB
                Namit Jain
              2. hive.195.8.patch
                961 kB
                Namit Jain
              3. hive.195.7.patch
                961 kB
                Namit Jain
              4. hive.195.6.patch
                964 kB
                Namit Jain
              5. hive.195.5.patch
                964 kB
                Namit Jain
              6. hive.195.4.patch
                928 kB
                Namit Jain
              7. 195.patch3.txt
                529 kB
                Namit Jain
              8. 195.patch2.txt
                498 kB
                Namit Jain
              9. 195.patch1.txt
                267 kB
                Namit Jain

                Issue Links

                is related to

                New Feature - A new feature of the product, which has yet to be developed. HIVE-917 Bucketed Map Join

                • Major - Major loss of function.
                • Closed

                  Activity

                    People

                    • Assignee:
                      namit Namit Jain
                      Reporter:
                      namit Namit Jain
                    • Votes:
                      1 Vote for this issue
                      Watchers:
                      3 Start watching this issue

                      Dates

                      • Created:
                        Updated:
                        Resolved: