目的

If you are trying to identify the where the majority of your attachments are located by space. This can be helpful when trying to audit attachments to reduce the size of a space export or even a backup with attachments. 

ソリューション

Run SQL query on the confluence database: 

select sum(cp.LONGVAL), s.spacename from spaces s INNER JOIN 
content c ON c.spaceid = s.spaceid INNER JOIN contentproperties cp 
ON cp.contentid = c.contentid where c.contenttype = 'ATTACHMENT' and 
cp.propertyname = 'FILESIZE' GROUP BY s.spacename;

The number returned is in bytes.