| From: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>, Marc Cousin <cousinmarc(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: cannot restore schema with is not distinct from on hstore since PG 9.6.8 |
| Date: | 2018-07-13 21:17:30 |
| Message-ID: | CAKFQuwYAY3hV9yE3D9SiaSfM9JJBu9DFOh0y3C6ZKE1s2OSY8w@mail.gmail.com |
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| Lists: | pgsql-bugs pgsql-hackers |
On Fri, Jul 13, 2018 at 1:54 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> So this is all pretty messy, but on the bright side, fixing it would allow
> cleaning up some ancient squishy coding in ruleutils.c. It wouldn't be
> controversial as just a v12 addition, perhaps ... but do we have a choice
> about back-patching? Dump/restore failures are not good.
>
I think serious consideration needs to be given to ways to allow the user
of pg_dump/pg_restore to choose the prior, less secure, mode of operation​.
IMO the risk surface presented to support back-patching the behavioral
changes was not severe enough to do so in the first place. I'm presuming
undoing the back-patch will be shot down without mercy but at least
consider an escape hatch for unafflicted secure systems that just happen to
depend on search_path more than a super-hardened system would.
David J.
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