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  1. MariaDB Server
  2. MDEV-13324

JSON_SET returns NULL instead of object

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 10.2(EOL)
    • 10.2.9
    • JSON
    • None

    Description

      In MySQL 5.7:

      SELECT JSON_SET('{}', '$.age', 87); 
      +-----------------------------+
      		 
      | JSON_SET('{}', '$.age', 87) |
      		 
      +-----------------------------+
      		 
      | {"age": 87}                 |
      		 
      +-----------------------------+

      In MariaDB 10.2:

      SELECT JSON_SET('{}', '$.age', 87); 
      +-----------------------------+
      		 
      | JSON_SET('{}', '$.age', 87) |
      		 
      +-----------------------------+
      		 
      | NULL                        |
      		 
      +-----------------------------+

      Attachments

        Issue Links

          is duplicated by

          Task - A task that needs to be done. MDEV-13323 json_set returns NULL instead of object

          • Major - Major loss of function.
          • Closed

          Activity

            Ascending order - Click to sort in descending order
            alice Alice Sherepa added a comment -

            reproduced on 10.2.7 

            SELECT JSON_SET('{}', '$.age', 87)
            		 
            +-----------------------------+
            		 
            | JSON_SET('{}', '$.age', 87) |
            		 
            +-----------------------------+
            		 
            | NULL                        |
            		 
            +-----------------------------+
            		 
            1 row in set, 1 warning (0.00 sec)
            		 
            Warning (Code 4038): Syntax error in JSON text in argument 1 to function 'json_set' at position 2
            		 
             
            		 
            MariaDB [test]> SELECT JSON_VALID('{}');
            		 
            --------------
            		 
            SELECT JSON_VALID('{}')
            		 
            +------------------+
            		 
            | JSON_VALID('{}') |
            		 
            +------------------+
            		 
            |                1 |
            		 
            +------------------+
            		 
            1 row in set (0.00 sec)

            alice Alice Sherepa added a comment - reproduced on 10.2.7 SELECT JSON_SET( '{}' , '$.age' , 87) + -----------------------------+ | JSON_SET( '{}' , '$.age' , 87) | + -----------------------------+ | NULL | + -----------------------------+ 1 row in set , 1 warning (0.00 sec) Warning (Code 4038): Syntax error in JSON text in argument 1 to function 'json_set' at position 2   MariaDB [test]> SELECT JSON_VALID( '{}' ); -------------- SELECT JSON_VALID( '{}' ) + ------------------+ | JSON_VALID( '{}' ) | + ------------------+ | 1 | + ------------------+ 1 row in set (0.00 sec)
            StevenWdV Steven WdV added a comment -

            Confirmed for MariaDB 10.3.1 Alpha, an other example would be:

            SELECT JSON_ARRAY_APPEND('[]', '$', 42)
            		 
            --returns NULL, should return '[42]'

            Also, the Issue Links section states this issue duplicates MDEV-13323, while it should be is duplicated by MDEV-13323

            StevenWdV Steven WdV added a comment - Confirmed for MariaDB 10.3.1 Alpha, an other example would be: SELECT JSON_ARRAY_APPEND( '[]' , '$' , 42) --returns NULL, should return '[42]' Also, the Issue Links section states this issue duplicates MDEV-13323 , while it should be is duplicated by MDEV-13323

            People

              holyfoot Alexey Botchkov
              greenman Ian Gilfillan
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              Dates

                Created:
                Updated:
                Resolved:

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