Você pode usar
json_extract
(5.7 acima).https://dev.mysql.com/doc/refman/5.7/en/json-search-functions.html#function_json-extract
SELECT user_id, json_data
FROM articles
WHERE json_extract(json_data, '$.title') LIKE '%CPU%';
json_extract
(5.7 acima).https://dev.mysql.com/doc/refman/5.7/en/json-search-functions.html#function_json-extract
SELECT user_id, json_data
FROM articles
WHERE json_extract(json_data, '$.title') LIKE '%CPU%';