How to find the total size of Attachments per space
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.
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.