Two queries to be run when shared flag in Folder and FileHeader is first created.

[pithos] / database / initializeSharedFlag.sql

update fileheader 
set shared=true
where id in (
select fileheader_id
from fileheader_permission
group by fileheader_id
having count(permissions_id)>1
)
or readforall=true;


update folder 
set shared=true
where id in (
select folder_id
from folder_permission
group by folder_id
having count(permissions_id)>1
)
or readforall=true;