Re: Will there ever be support for Row Level Security on Materialized Views?

On 28 August 2018 at 01:49, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
> On 2018-Aug-27, Ken Tanzer wrote:
>> - In the scheme of things, is it a lot of work or not so much?
>
> Probably not much.
>

Yeah, it doesn't seem like it would be particularly difficult, but it
would probably still be a reasonable amount of work to go round
finding all the places in code that would need updating. I.e., I think
it would be more mechanical work, than anything fundamentally
challenging.

On the face of it, it seems like it might be a reasonable thing to
support, but I wonder, is this really just syntactic sugar for
creating a security barrier view on top of the materialized view?

When RLS was originally implemented, that same question was asked for
tables, but the answer was "no" because RLS on a table gives you
fine-grained (row-level) control over what data in the table can be
modified as well as read, which a SB view doesn't give you. But for a
MV view, that's not a consideration, so what would RLS on a MV
actually give you?

Regards,
Dean