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  1. MariaDB Server
  2. MDEV-20890

Illegal mix of collations with UUID()

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 5.5(EOL), 10.1(EOL), 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5
    • 10.5.0
    • Data types
    • None

    Description

      Illegal mix of collations with UUID()

      SET NAMES utf8 COLLATE utf8_unicode_ci;
      		 
      SELECT uuid()>'';


      ERROR 1267 (HY000): Illegal mix of collations (utf8_general_ci,COERCIBLE) and (utf8_unicode_ci,COERCIBLE) for operation '>'

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-4958 Adding datatype UUID

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

          Activity

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            bar Alexander Barkov created issue -
            bar Alexander Barkov made changes -
            Field Original Value New Value
            bar Alexander Barkov added a comment - - edited

            Fixing UUID() as follows:

            • changing the collation derivation to lower (from COERCIBLE to NUMERIC)
            • changing the collation from utf8_general_ci to latin1_swedish_ci

            So now UUID() has a lower collation priority than a string literal (or an expression derived from a string literal).

            bar Alexander Barkov added a comment - - edited Fixing UUID() as follows: changing the collation derivation to lower (from COERCIBLE to NUMERIC) changing the collation from utf8_general_ci to latin1_swedish_ci So now UUID() has a lower collation priority than a string literal (or an expression derived from a string literal).
            bar Alexander Barkov made changes -
            issue.field.resolutiondate 2019-11-05 03:13:39.0 2019-11-05 03:13:39.815
            bar Alexander Barkov made changes -
            Fix Version/s 10.5.0 [ 23709 ]
            Fix Version/s 10.5 [ 23123 ]
            Resolution Fixed [ 1 ]
            Status Open [ 1 ] Closed [ 6 ]
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 100570 ] MariaDB v4 [ 156894 ]

            People

              bar Alexander Barkov
              bar Alexander Barkov
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              Dates

                Created:
                Updated:
                Resolved:

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