Solutions to this ERROR
 

Database error

Invalid SQL:
SELECT filename, filesize, postid, attachment.userid,
filedata,
dateline,
visible, mimetype, NOT ISNULL(deletionlog.primaryid) AS isdeleted,doitrepondre
FROM attachment AS attachment
LEFT JOIN attachmenttype AS attachmenttype ON(attachmenttype.extension = SUBSTRING_INDEX(attachment.filename, '.', -1))
LEFT JOIN deletionlog AS deletionlog ON(attachment.postid = deletionlog.primaryid AND type = 'post')
WHERE attachmentid = 4783

mysql error: MySQL client run out of memory

mysql error number: 2008

Board was running fine all week - have added nothing or changed anything then today get the error above when trying to download a rar.
if i try to upload a rar to the board it times out and gives me page not displayed but liek said everything was fine till today.

Any solutions - have emailed host regarding it but waiting on reply so wondering what you lot make of it ??

MySQL is likely configured poorly, or the server itself has too little memory. In general, your host will need to fix this error.

As a slight hunch, back up (if you need it) and then delete the post deletion log.

cheers filburt seems host has now fixed it as attachments download fine now but can u tell me why delete post deletion log ??

I was thinking that the joining of the two tables was what consumed so much memory, possibly. By freeing up one of them, there would be a smaller virtual table used for the query.