|    0 |\n+----------------------------------+------+\n1 row in set (0.00 sec)\n\nmysql> SELECT JSON_STORAGE_FREE(\'{"a": 10, "b": "wxyz", "c": "1"}\') AS Free;\n+------+\n| Free |\n+------+\n|    0 |\n+------+\n1 row in set (0.00 sec)\n','https://dev.mysql.com/doc/refman/8.0/en/json-utility-functions.html');