| From: | Rod Taylor <rod(dot)taylor(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-hackers(at)postgresql(dot)org, Stephen Frost <sfrost(at)snowman(dot)net> |
| Subject: | Re: RLS in CTE incorrect permission failure |
| Date: | 2017-06-21 23:56:35 |
| Message-ID: | CAHz80e6XVB0CcAtBcHZ7PJDCPD=eXTmOWhqe_BGs7HR0tauEng@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Wed, Jun 21, 2017 at 7:46 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Rod Taylor <rod(dot)taylor(at)gmail(dot)com> writes:
> > In the attached script, the second insert into t2 (as part of the CTE)
> > should succeed.
>
> No, I don't think so. You declared the check function as STABLE which
> means it is confined to seeing the same snapshot as the surrounding query.
> So it can't see anything inserted by that query.
>
> Possibly it'd work as you wish with a VOLATILE function.
>
Indeed, that works as expected.
Sorry for the noise.
--
Rod Taylor
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