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From: Pavel Stehule <[email protected]>
To: Dmitry Dolgov <[email protected]>
Cc: Laurenz Albe <[email protected]>
Cc: Erik Rijkers <[email protected]>
Cc: Michael Paquier <[email protected]>
Cc: Amit Kapila <[email protected]>
Cc: DUVAL REMI <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: proposal: schema variables
Date: Sat, 16 Nov 2024 15:34:58 +0100
Message-ID: <CAFj8pRAX4Pmh_pNcOFF7r_hHkdDNnZ7iwEb_7JyxOzZ8ZrxpXA@mail.gmail.com> (raw)
In-Reply-To: <stckyvkl4yyzvgjsaawojs3xikke7mmds5bhv7l7qerclywywk@h4v4n43xm6u2>
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Hi


> As a side note, I've recently caught myself thinking "it would be cool to
> have
> session variables here". The use case was preparing a policy for RLS,
> based on
> some session-level data set by an application. This session-level data is
> of a
> composite data type, so simple current_setting is cumbersome to use, and a
> temporary table will be dropped at the end, taking the policy with it due
> to
> the recorded dependency between them. Thus a session variable of some
> composite
> type sounds like a good fit.
>

yes, RLS support is one mentioned use case, and strong reason the access
rights are implemented there.

Regards

Pavel


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