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  1. MariaDB ColumnStore
  2. MCOL-3663

Performance regression in LIKE & NOT LIKE

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 1.4.1
    • Fix Version/s: 1.4.3
    • Component/s: None
    • Labels:
      None
    • Sprint:
      2020-1, 2020-2

      Description

      LIKE and NOT LIKE perform significantly worse in 1.4 vs 1.2. The assumed guess is this falls back to non-select-handler based methods. See attached image for example.

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          Issue Links

          relates to

          New Feature - A new feature of the product, which has yet to be developed. MCOL-3778 Replace glibc with google's re2 for regex processing

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

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              Assignee:
              dleeyh Daniel Lee
              Reporter:
              LinuxJedi Andrew Hutchings
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                Dates

                Created:
                Updated:
                Resolved: