Обсуждение: How to allocate a global variable (to implement virutal databases)
I would like to implement a row-level security for application-level-user (the user is not a postgresql user), I wish to restrict access to rows in diferent tables based on this application-level-user. My idea is to use rules to rewrite queries based on the contents of a global variable that is set with the application-level-userid, to this end I like to set the variabale at connection-time only, and aplied to all queris by the rewrite rules.
I think I can write a c-function but I do not know the correct way to allocate memory with session duration, maybe simply with alloc (o should I use palloc?).
Or is there a solution I do not know about?
Thanks.
Atte.
Juan Manuel Díaz Lara
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Juan Manuel Diaz Lara <jmdiazlr@yahoo.com> writes: > I would like to implement a row-level security for > application-level-user (the user is not a postgresql user), Have you looked at Veil? http://veil.projects.postgresql.org/ regards, tom lane
Re: How to allocate a global variable (to implement virutal databases)
От
Juan Manuel Diaz Lara
Дата:
Thanks, but from the vail site "windows sorry"... I am working in windows.
I was thinking in a simply implementation, with only global variables used with the rule system.
I can write the c code for this.
Tom Lane <tgl@sss.pgh.pa.us> wrote:
Tom Lane <tgl@sss.pgh.pa.us> wrote:
Juan Manuel Diaz Lara writes:
> I would like to implement a row-level security for
> application-level-user (the user is not a postgresql user),
Have you looked at Veil?
http://veil.projects.postgresql.org/
regards, tom lane
Atte.
Juan Manuel Díaz Lara
Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.