Sous-requête comme Dictionnaire

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''Le rapport \"4815\" est introuvable.' t) _tKVNPDX' at line 1 (1)
SELECT JSON_OBJECTAGG(slug, name) INTO @TERM_NAMES FROM (SELECT slug, name FROM 'Le rapport \"4815\" est introuvable.' t) _tKVNPDX