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

Hi. My question is similar to one that was asked but apparently never
answered a couple of years ago on this list. (
https://www.postgresql.org/message-id/20160112023419.GA30965%40moraine.isi.edu
)

Basically, I'm wondering whether materialized views are likely to ever
support row-level security.

I've been toying with using MVs to address some performance issues, until
coming across this issue.

As explanation of the use case, I've got a DB that is shared across
multiple sites ("segments"). Each site is a different DB user, and access
to data is controlled by a function (has_segment_access).

So for a table, and a view, we use:

CREATE POLICY tbl_client_sites ON tbl_client FOR ALL USING
(has_segment_access(agency_segment_code));

CREATE VIEW client AS SELECT * FROM tbl_client WHERE
has_segment_access(agency_segment_code);

I'd been thinking I could just materialize some of these views, but then
they are frozen data, like a table. But unlike a table, you can't apply
RLS. Hence the email. Any insight or development crystal-balling
appreciated. Thanks!

Ken

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