Re: User mapping: view over a foreign table

From: Vladimir Ryabtsev <greatvovan(at)gmail(dot)com>
To: pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: User mapping: view over a foreign table
Date: 2019-07-17 21:24:59
Message-ID: CAMqTPqmzFQadU3YDU24jss+TmKmrkDjLHyWA1ZkF_yDjdZMzpQ@mail.gmail.com
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My DB version(): PostgreSQL 10.3 (Ubuntu 10.3-1.pgdg14.04+1) on
x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4,
64-bit

ср, 17 июл. 2019 г. в 14:24, Vladimir Ryabtsev <greatvovan(at)gmail(dot)com>:

> Supposing I have a foreign table F and a view V that selects rows from F.
>
> The owner of F is USER1.
> The owner of V is USER2.
> The currently logged user is "me".
>
> When I query the foreign table F, the DBMS engine looks for USER MAPPING
> for "me", regardless of who is the owner of the table.
>
> When I query the view V, the engine searches the USER MAPPING for USER2
> who is the owner of the view.
>
> This looks inconsistent and misleading. I wonder, are there any reasons
> behind this design decision? Is it documented somewhere (I did not find it)?
>
> Regards,
> Vlad
>

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