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  1. MariaDB Server
  2. MDEV-12592

Illegal mix of collations with the HEX function

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.1, 10.2, 10.3
    • 10.3.1
    • Character Sets
    • None

    Description

      SET NAMES utf8;
      		 
      DROP TABLE IF EXISTS t1;
      		 
      CREATE TABLE t1 (a VARCHAR(10) CHARACTER SET latin1);
      		 
      SELECT IF(a<' ',HEX(a),a) FROM t1;


      ERROR 1267 (HY000): Illegal mix of collations (utf8_general_ci,COERCIBLE) and (latin1_swedish_ci,IMPLICIT) for operation 'if'

      The error is incorrect. The HEX function returns a string in ASCII range, so it should be safe to convert it to latin1.

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            bar Alexander Barkov
            bar Alexander Barkov
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              Created:
              Updated:
              Resolved:

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