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  1. MariaDB Server
  2. MDEV-8765

mysqldump silently corrupts 4-byte UTF-8 data

Details

    Description

      Bug for Oracle MySQL: https://bugs.mysql.com/bug.php?id=71746

      But this also affect MariaDB 10.0:

      [dvaneeden@dve-mac msb_ma10_0_20]$ ./my sqldump --skip-extended-insert unicodedata | grep DOLPHIN
      		 
      INSERT INTO `ucd` VALUES ('1F42C','?','DOLPHIN','So','0','ON','','','','','N','','','','','');
      		 
      [dvaneeden@dve-mac msb_ma10_0_20]$ ./my sqldump --skip-extended-insert --default-character-set=utf8mb4 unicodedata | grep DOLPHIN
      		 
      INSERT INTO `ucd` VALUES ('1F42C','��','DOLPHIN','So','0','ON','','','','','N','','','','','');

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-7128 Configuring charsets or collations as utf8 yields surprising result and leads to data loss

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. MDEV-8334 Rename utf8 to utf8mb3

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed
          links to

          Web Link Bug #71746 - mysqldump may use utf8mb4 as default-character-set

          Activity

            Transition Time In Source Status Execution Times
            Alexander Barkov made transition -
            Open Closed
            		1130d 19h 3m 1

            People

              bar Alexander Barkov
              dveeden Daniël van Eeden
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              Dates

                Created:
                Updated:
                Resolved:

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