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  1. MariaDB Server
  2. MDEV-11471

JSON_ARRAY_APPEND returns incorrect results

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      MariaDB 10.2

      MariaDB [test]> SET @j = '["a", ["b", "c"], "d"]';
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> SELECT JSON_ARRAY_APPEND(@j, '$[0]', 2);
      +----------------------------------+
      | JSON_ARRAY_APPEND(@j, '$[0]', 2) |
      +----------------------------------+
      | NULL                             |
      +----------------------------------+
      1 row in set (0.00 sec)
      

      MySQL 5.7

      MySQL [test]> SET @j = '["a", ["b", "c"], "d"]';
      Query OK, 0 rows affected (0.00 sec)
       
      MySQL [test]> SELECT JSON_ARRAY_APPEND(@j, '$[0]', 2);
      +----------------------------------+
      | JSON_ARRAY_APPEND(@j, '$[0]', 2) |
      +----------------------------------+
      | [["a", 2], ["b", "c"], "d"]      |
      +----------------------------------+
      1 row in set (0.00 sec)
      

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              Assignee:
              holyfoot Alexey Botchkov
              Reporter:
              elenst Elena Stepanova
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                Updated:
                Resolved: