[support] File Attachment Maintenace

[Chris McKeever]

I deleted a file from the node that it was uploaded to, however, it
still exists in the /files directory.

Looking at the SQL schema, it appears that the file sitll has an entry
in the 'files' table, however it doesnt appear to be listed on the
node.

I haven't found the magic trick which tells drupal that a file has
been removed from a node...

So --

A) are files supposed to be purged once they are deleted from the node?
B) how does the node know which file to list - is there a bit field somewhere?

Thanks