Re: CREATE POLICY and RETURNING

On 2014-10-17 14:57:03 +0800, Craig Ringer wrote:
> On 10/17/2014 02:49 AM, Robert Haas wrote:
> > I think you could probably make the DELETE policy control what can get
> > deleted, but then have the SELECT policy further filter what gets
> > returned.
> 
> That seems like the worst of both worlds to me.
> 
> Suddenly DELETE ... RETURNING might delete more rows than it reports a
> resultset for. As well as being potentially dangerous for people using
> it in wCTEs, etc, to me that's the most astonishing possible outcome of all.
> 
> I'd be much happier with even:
> 
>   ERROR: RETURNING not permitted with SELECT row-security policy

FWIW, that doesn't sound acceptable to me.

Greetings,

Andres Freund

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