Re: Extend CREATE POLICY to add IF EXISTS - Mailing list pgsql-general

From Paul Austin
Subject Re: Extend CREATE POLICY to add IF EXISTS
Date
Msg-id CWXP265MB5009813E2DAA4D48F8C4A9F4F7F5A@CWXP265MB5009.GBRP265.PROD.OUTLOOK.COM
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In response to Re: Extend CREATE POLICY to add IF EXISTS  (Adrian Klaver <adrian.klaver@aklaver.com>)
Responses Re: Extend CREATE POLICY to add IF EXISTS
List pgsql-general
Adrian,

The drop policy IF EXISTS does work. 

But it would be nice to have the IF NOT EXISTS on CREATE POLICY so I don't need to do a drop and create.


From: Adrian Klaver <adrian.klaver@aklaver.com>
Sent: October 20, 2025 14:51
To: Paul Austin <paul.austin@automutatio.com>; pgsql-general@lists.postgresql.org <pgsql-general@lists.postgresql.org>
Subject: Re: Extend CREATE POLICY to add IF EXISTS
 
On 10/20/25 14:49, Paul Austin wrote:
> I forgot DROP POLICY already has IF EXISTS

I take it that works for you?

>
> *From:*Paul Austin <paul.austin@automutatio.com>
> *Sent:* October 20, 2025 2:46 PM
> *To:* pgsql-general@lists.postgresql.org
> *Subject:* Extend CREATE POLICY to add IF EXISTS
>
> Many (but not all) DDL statements use the pattern IF EXISTS or IF NOT
> EXISTS. This is really useful if you want to create a re-start-able data
> model update script without needing to have PL/pgSQL blocks that has
> checks to see if it exists.
>
> An example of a statement that doesn’t implement this pattern in the
> CREATE POLICY statement.
>
> Is there a plan to add this pattern to the rest of the DDL statements?
> Or could it be added to the CREATE/DROP POLICY statements?
>
> Thanks,
>
> Paul
>


--
Adrian Klaver
adrian.klaver@aklaver.com

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