Optimizing this SQL query - please help

[AlexanderT]

Can you guys help me optimize this SQL query? It basically pulls out the latest ten threads with the condition that they are meant for the frontpage (custom column 'thread.frontpage' set to 1).

SELECT SQL_CACHE 
	thread.threadid, thread.title, thread.dateline, thread.postusername, thread.postuserid, thread.replycount, thread.pollid, thread.uploadid,
	post.pagetext, post.attach, post.postid,
	forum.forumid, forum.parentid, forum.title AS forumtitle,
	editcp_uploads.dateline AS filedate, editcp_uploads.filename, editcp_uploads.filewidth AS imagewidth, editcp_uploads.fileheight AS imageheight
FROM thread AS thread
LEFT JOIN post ON(thread.firstpostid = post.postid)
LEFT JOIN forum ON(forum.forumid = thread.forumid)
LEFT JOIN editcp_uploads ON(thread.uploadid = editcp_uploads.id)
WHERE thread.frontpage = '1'
	AND thread.forumid NOT IN (0,29)
	AND thread.visible = 1
	AND post.visible = 1
	AND thread.open <> 10
ORDER BY thread.dateline DESC
LIMIT 0,10

id	select_type	table			type		possible_keys	key		key_len	ref					rows	Extra
1	SIMPLE		thread			range		forumid			forumid	2	 						10357	Using where; Using filesort
1	SIMPLE		forum			eq_ref		PRIMARY			PRIMARY	2		thread.forumid		1	 
1	SIMPLE		editcp_uploads		eq_ref		PRIMARY			PRIMARY	2		thread.uploadid		1	 
1	SIMPLE		post			eq_ref		PRIMARY			PRIMARY	4		thread.firstpostid	1		Using where

Current indices:

Keyname  	Type  	Cardinality   	Field
PRIMARY 	PRIMARY 10382  			threadid
postuserid 	INDEX 	1730  			postuserid
pollid 		INDEX 	188  			pollid
dateline 	INDEX 	10382  			dateline
lastpost 	INDEX 	10382  			lastpost
lastposter 	INDEX 	1483  			lastposter
forumid 	INDEX 	10382  			forumid, visible, sticky, lastpost
title 		FULLTEXT 	1  			title

Basically I would prevent the query from going through all existing thread rows. If it's not possible to optimize this query, perhaps two more simple queries could do the trick?

Thanks!

[Eikinskjaldi]

If its in a where clause or a join clause, it should be indexed.

which is to say, all of these
thread.firstpostid
post.postid
forum.forumid
thread.forumid
thread.uploadid
editcp_uploads.id)
thread.frontpage
thread.visible
post.visible
thread.open
thread.dateline