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  1. MariaDB MaxScale
  2. MXS-5297

add smart rewrite function from "%like%" to "match against"

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Details

    • New Feature
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • None
    • None
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    Description

      1.
      Analyze, if query have conditions, which likely cause a full scan
      like 

       tag LIKE '%aaaa%' OR LIKE '%bbbb%'

      2.
      Check, if the column has a full text index.

      If 1. + 2. true rewrite the query to "match against" syntax,

      so 

       tag LIKE '%aaaa%' OR LIKE '%bbbb%'

      will be rewritten to

      MATCH(tag) AGAINST('+aaaa','+bbbb'  IN BOOLEAN MODE)

      This can improve application, where changing the queries is difficult like snow

      Attachments

        Issue Links

          relates to

          New Feature - A new feature of the product, which has yet to be developed. MDEV-35101 add smart optimizer usage of full text index for like operator

          • Major - Major loss of function.
          • Closed

          Activity

            People

              Unassigned Unassigned
              Richard Richard Stracke
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              Dates

                Created:
                Updated:

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