Erreur fatale : invalid while request

(SELECT
9 AS id_search,
a.id AS id_content,
a.title AS title,
( 2 * MATCH(a.title) AGAINST('téléchargement') + MATCH(a.contents) AGAINST('téléchargement') ) / 3 * 1 AS relevance, CONCAT(CONCAT(CONCAT('../articles/articles.php?id=',a.id),'&cat='),a.idcat) AS link
FROM phpboost_articles a
LEFT JOIN phpboost_articles_cats ac ON ac.id = a.idcat
WHERE

a.visible = 1 AND ((ac.aprob = 1 AND ac.auth LIKE '%s:3:"r-1";i:1;%') OR a.idcat = 0)

AND (MATCH(a.title) AGAINST('téléchargement') OR MATCH(a.contents) AGAINST('téléchargement'))
ORDER BY relevance DESC LIMIT 0, 10) UNION (SELECT 10 AS `id_search`,
q.id AS `id_content`,
q.word AS `title`,
( MATCH(q.description) AGAINST('téléchargement') + MATCH(q.word) AGAINST('téléchargement') ) / 2 * 1 AS `relevance`,
CONCAT('../dictionary/dictionary.php?l=',q.word) AS `link`
FROM phpboost_dictionary q
WHERE ( MATCH(q.word) AGAINST('téléchargement')
OR MATCH(q.description) AGAINST('téléchargement') )) UNION (SELECT 11 AS id_search,
d.id AS id_content,
d.title AS title,
( 3 * MATCH(d.title) AGAINST('téléchargement') + 2 * MATCH(d.short_contents) AGAINST('téléchargement') + MATCH(d.contents) AGAINST('téléchargement') ) / 6 * 1 AS relevance, CONCAT('../download/download.php?id=',d.id) AS link
FROM phpboost_download d
WHERE ( MATCH(d.title) AGAINST('téléchargement') OR MATCH(d.short_contents) AGAINST('téléchargement') OR MATCH(d.contents) AGAINST('téléchargement') ) AND d.idcat IN (1,2) ORDER BY relevance DESC LIMIT 0, 100) UNION (SELECT 12 AS `id_search`,
msg.id AS `id_content`,
t.title AS `title`,
MATCH(t.title) AGAINST('téléchargement') * 1 AS `relevance`,
CONCAT(CONCAT(CONCAT(CONCAT('..','/forum/topic.php?id='),t.id),'#m'),msg.id) AS `link`
FROM phpboost_forum_msg msg
JOIN phpboost_forum_topics t ON t.id = msg.idtopic
JOIN phpboost_forum_cats c ON c.level != 0 AND c.aprob = 1 AND c.id = t.idcat
WHERE MATCH(t.title) AGAINST('téléchargement')

GROUP BY t.id
ORDER BY relevance DESC LIMIT 0, 50) UNION (SELECT 13 AS id_search,
f.id AS id_content,
f.name AS title,
( 2 * MATCH(f.name) AGAINST('téléchargement') + MATCH(f.contents) AGAINST('téléchargement') ) / 3 * 1 AS relevance, CONCAT(CONCAT(CONCAT('../media/media.php?id=',f.id),'&cat='),f.idcat) AS link
FROM phpboost_media f
WHERE ( MATCH(f.name) AGAINST('téléchargement') OR MATCH(f.contents) AGAINST('téléchargement') ) ORDER BY relevance DESC LIMIT 0, 100) UNION (SELECT 14 AS id_search,
n.id AS id_content,
n.title AS title,
( 2 * MATCH(n.title) AGAINST('téléchargement') + (MATCH(n.contents) AGAINST('téléchargement') + MATCH(n.extend_contents) AGAINST('téléchargement')) / 2 ) / 3 * 1 AS relevance, CONCAT('../news/news.php?id=',n.id) AS link
FROM phpboost_news n
WHERE ( MATCH(n.title) AGAINST('téléchargement') OR MATCH(n.contents) AGAINST('téléchargement') OR MATCH(n.extend_contents) AGAINST('téléchargement') )
AND visible = 1 AND ('1285060405' > start AND ( end = 0 OR '1285060405' < end ) )
ORDER BY relevance DESC LIMIT 0, 100) UNION (SELECT 16 AS `id_search`,
q.id AS `id_content`,
q.title AS `title`,
1 AS `relevance`,
CONCAT('../smallads/smallads.php?id=',q.id) AS `link`
FROM phpboost_smallads q WHERE ((q.title LIKE '%téléchargement%')
OR (q.contents LIKE '%téléchargement%')))

Illegal mix of collations for operation 'UNION'


Ligne 338 : search.class.php