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  1. MariaDB Server
  2. MDEV-24335

Unexpected question mark in the end of a TINYTEXT column

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    Description

      The problem is repeatable with all versions from 10.2 to 10.7.

      CREATE OR REPLACE TABLE t1 (a TINYTEXT character set utf8) engine=myisam default charset=utf8;
      		 
      INSERT IGNORE INTO t1 VALUES (REPEAT(_utf8 0xD184, 250));
      		 
      SELECT LENGTH(a), CHAR_LENGTH(a), RIGHT(a,3) FROM t1;


      +-----------+----------------+------------+
      		 
      | LENGTH(a) | CHAR_LENGTH(a) | RIGHT(a,3) |
      		 
      +-----------+----------------+------------+
      		 
      |       255 |            128 | фф?        |
      		 
      +-----------+----------------+------------+

      Looks wrong. There should not be ? at the end. The expected result is:

      +-----------+----------------+------------+
      		 
      | LENGTH(a) | CHAR_LENGTH(a) | RIGHT(a,3) |
      		 
      +-----------+----------------+------------+
      		 
      |       254 |            127 | ффф        |
      		 
      +-----------+----------------+------------+

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

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