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  1. MariaDB Server
  2. MDEV-34380

Set optimizer_switch='cset_narrowing=on' by default

Details

    Description

      Charset Narrowing optimization: https://mariadb.com/kb/en/charset-narrowing-optimization/

      has been introduced into versions starting from 10.6. Because of that, it is not enabled by default.
      This task is to enable it by default in a non-GA version.

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          relates to

          Task - A task that needs to be done. MDEV-32526 Enable Charset Narrowing by default starting from 11.3

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Activity

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            ralf.gebhardt Ralf Gebhardt added a comment -

            I have removed the fixVersion from this ticket as it is unlikely to be in 11.7 with status open, priority major and unassigned

            serg, FYI

            ralf.gebhardt Ralf Gebhardt added a comment - I have removed the fixVersion from this ticket as it is unlikely to be in 11.7 with status open, priority major and unassigned serg , FYI
            psergei Sergei Petrunia added a comment -

            MDEV-32526 lists this as it already has been done but apparently it has not.

            psergei Sergei Petrunia added a comment - MDEV-32526 lists this as it already has been done but apparently it has not.
            psergei Sergei Petrunia added a comment -

            ralf.gebhardt, it should be just a matter of changing one setting, so I'll do it in this dev sprint.
            There's really no development involved but lstartseva would do an extra pass on this. She's already done one when this feature was pushed into 10.6 (where it's not enabled by default)

            psergei Sergei Petrunia added a comment - ralf.gebhardt , it should be just a matter of changing one setting, so I'll do it in this dev sprint. There's really no development involved but lstartseva would do an extra pass on this. She's already done one when this feature was pushed into 10.6 (where it's not enabled by default)
            psergei Sergei Petrunia added a comment -

            https://github.com/MariaDB/server/tree/bb-11.7-cset-narrowing-on

            psergei Sergei Petrunia added a comment - https://github.com/MariaDB/server/tree/bb-11.7-cset-narrowing-on
            lstartseva Lena Startseva added a comment -

            Testing done. Ok to push.

            lstartseva Lena Startseva added a comment - Testing done. Ok to push.
            psergei Sergei Petrunia added a comment -

            The commit in the main branch:

            commit 8478a06cdbb7281e1cc2d507f18c985c736c2ffc
            		 
            Author: Sergei Petrunia <sergey@mariadb.com>
            		 
            Date:   Fri Jul 26 10:15:50 2024 +0300
            		 
             
            		 
                MDEV-34380: Set optimizer_switch='cset_narrowing=on' by default

            psergei Sergei Petrunia added a comment - The commit in the main branch: commit 8478a06cdbb7281e1cc2d507f18c985c736c2ffc Author: Sergei Petrunia <sergey@mariadb.com> Date: Fri Jul 26 10:15:50 2024 +0300   MDEV-34380: Set optimizer_switch='cset_narrowing=on' by default

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              psergei Sergei Petrunia
              psergei Sergei Petrunia
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