Thanks very much for those info. >From what I read, I think Veil will do the trick.
I already use ROLES, but there are a few probems with them : - first, as I mix the data from different users in the same table, ROLES do not solve the complete problem. - second, this forces me to use a dedicated postgresql connection for each user, which on a large accessed database, could be a big problem. If what I read from Veil is exact, it allows determining access rules from SELECT statements, which is what I am currently performing with the "current_user()". A typical view in my system is declared like this : CREATE VIEW "AgendaCurrentlyDisplayedReadableView" AS SELECT "AgendaAccessRights"."AgendaID" FROM "AgendaAccessRights" WHERE (("AgendaAccessRights"."ClientID" = (SELECT "Clients"."ID" FROM "Clients" WHERE "Clients"."Login" = "current_user"())) AND ("AgendaAccessRights"."IsDisplayed" = true)); My understanding is that veil will allow me to perform stuff like that, but without using the "current_user()" stuff. And, if I still understand correctly, the Veil serialisation functions will allow me to quickly switch from one user to the other with keeping the same database connection. Am I right or is there something I did not understood ? Second question : does Veil has a big impact on database performances ? Regards, Brice 2011/10/25 bricklen <brick...@gmail.com> > On Mon, Oct 24, 2011 at 8:50 PM, Craig Ringer <ring...@ringerc.id.au> > wrote: > > > > Declarative row-level security (row ownership) would be really nice... > > here's hoping the SELinux work can be extended to support a simpler, > > OS-agnostic non-SELinux-based row-level RBAC mechanism. > > -- > > Craig Ringer > > Veil might do what you mention above. > > http://veil.projects.postgresql.org/curdocs/index.html > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql >