Date: Thu, 12 Sep 2024 05:41:03 +0200 (CEST)
From: Andreas Joseph Krogh <andreas@visena.com>
To: pgsql-general@lists.postgresql.org
Message-ID: <VisenaEmail.0.81936c517b2d9cfe.191e44de951@origo-test01.app.internal.visena.net>
Subject: Effects of REVOKE SELECT ON ALL TABLES IN SCHEMA pg_catalog FROM
 PUBLIC
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Hei all.


Motivation: I have PowerBI users, with a separate =E2=80=98reporting=E2=80=
=99-role, accessing=20
a database and I want to prevent them from listing all tables, users, datab=
ases=20
and view-definitions (to not see the underlying query).


I'm evaluating this:
REVOKE SELECT ON ALL TABLES IN SCHEMA pg_catalog FROM PUBLIC; REVOKE SELECT=
 ON=20
ALL TABLES IN SCHEMA information_schema FROM PUBLIC;
Will this affect =E2=80=9Cnormal behaviour=E2=80=9D, ie. prevent the planne=
r, or other=20
internal mechanisms, from working properly for sessions logged in with the=
=20
=E2=80=98reporting=E2=80=99-role?


Thanks.


--
Andreas Joseph Krogh
CTO / Partner - Visena AS
Mobile: +47 909 56 963
andreas@visena.com <mailto:andreas@visena.com>
www.visena.com <https://www.visena.com>
 <https://www.visena.com>
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p.MsoNormal, li.MsoNormal, div.MsoNormal {
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}</style><div class=3D"ck-content" data-visena-message-id=3D"_VisenaEmail.0=
.81936c517b2d9cfe.191e44de951@origo-test01.app.internal.visena.net_"><p cla=
ss=3D"visenaNormal">Hei all.</p><p class=3D"visenaNormal">=C2=A0</p><p clas=
s=3D"visenaNormal">Motivation: I have PowerBI users, with a separate =E2=80=
=98reporting=E2=80=99-role, accessing a database and I want to prevent them=
 from listing all tables, users, databases and view-definitions (to not see=
 the underlying query).</p><p class=3D"visenaNormal">=C2=A0</p><p class=3D"=
visenaNormal">I'm evaluating this:</p><pre><code class=3D"language-plaintex=
t">REVOKE SELECT ON ALL TABLES IN SCHEMA pg_catalog FROM PUBLIC;
REVOKE SELECT ON ALL TABLES IN SCHEMA information_schema FROM PUBLIC;</code=
></pre><p class=3D"visenaNormal">Will this affect =E2=80=9Cnormal behaviour=
=E2=80=9D, ie. prevent the planner, or other internal mechanisms, from work=
ing properly for sessions logged in with the =E2=80=98reporting=E2=80=99-ro=
le?</p><p class=3D"visenaNormal">=C2=A0</p><p class=3D"visenaNormal">Thanks=
.</p><p class=3D"visenaNormal">=C2=A0</p><div class=3D"visena-email-signatu=
re" data-visena-message-id=3D"_VisenaEmail.0.81936c517b2d9cfe.191e44de951@o=
rigo-test01.app.internal.visena.net_"><div><div><div>--</div><div><span sty=
le=3D"font-family:arial,helvetica,sans-serif;"><strong>Andreas Joseph Krogh=
</strong></span></div><div><span style=3D"font-family:arial,helvetica,sans-=
serif;">CTO / Partner</span> - Visena AS</div><div><span style=3D"font-fami=
ly:arial,helvetica,sans-serif;">Mobile: +47 909 56 963</span></div><div><a =
href=3D"mailto:andreas@visena.com">andreas@visena.com</a></div><div><a href=
=3D"https://www.visena.com">www.visena.com</a></div><div style=3D"padding-t=
op:5px;"><a href=3D"https://www.visena.com"><img alt=3D"" src=3D"cid:part_F=
675218611219TBUSTJ"></a></div></div></div></div></div>
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