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  1. MariaDB Server
  2. MDEV-17081

Make optimizer aware of Mdev-371 (long unique index)

Details

    • Task
    • Status: Stalled (View Workflow)
    • Major
    • Resolution: Unresolved
    • None
    • Optimizer, Server
    • None

    Description

      This mdev is about leveraging long unique index for blob in optimizer.

      Currently there are 2 approaches

      1. fix ha_index_read_max(idx_map) to look for hash(blob column ) instead of actual blob.

      2. Extend the where condition with DB_ROW_HASH_XX = hash(where long columns)

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-17662 Default to UTF8

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-19705 Assertion `tmp >= 0' failed in best_access_path

          • Major - Major loss of function.
          • Closed

          Activity

            Transition Time In Source Status Execution Times
            Julien Fritsch made transition -
            Open In Progress
            		167d 4h 8m 1
            Sachin Setiya (Inactive) made transition -
            In Progress Stalled
            		496d 22h 29m 1

            People

              serg Sergei Golubchik
              sachin.setiya.007 Sachin Setiya (Inactive)
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              Dates

                Created:
                Updated:

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