From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
---|---|
To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Noah Misch <noah(at)leadboat(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: jsonb, unicode escapes and escaped backslashes |
Date: | 2015-01-29 21:48:15 |
Message-ID: | 20150129214815.GC24213@alap3.anarazel.de |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
On 2015-01-29 16:33:36 -0500, Andrew Dunstan wrote:
>
> On 01/29/2015 12:10 PM, Robert Haas wrote:
> >On Wed, Jan 28, 2015 at 12:48 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >>The cause of this bug is commit 0ad1a816320a2b539a51628e2a0b1e83ff096b1d,
> >>which I'm inclined to think we need to simply revert, not render even
> >>more squirrely.
> >Yes, that commit looks broken. If you convert from text to JSON you
> >should get a JSON string equivalent to the text you started out with.
> >That commit departs from that in favor of allowing \uXXXX sequences in
> >the text being converted to turn into a single character (or perhaps
> >an encoding error) after a text->json->text roundtrip. Maybe I
> >haven't had enough caffeine today, but I can't see how that can
> >possibly be a good idea.
> I'm coming down more and more on the side of Tom's suggestion just to ban
> \u0000 in jsonb. I think that would let us have some fairly simple and
> consistent rules. I'm not too worried that we'll be disallowing input that
> we've previously allowed. We've done that often in the past, although less
> often in point releases. I certainly don't want to wait a full release cycle
> to fix this if possible.
I think waiting a full cycle would be likely to make things much worse,
given 9.4's current age.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
From | Date | Subject | |
---|---|---|---|
Next Message | Roger Pack | 2015-01-29 21:58:14 | Re: 4B row limit for CLOB tables |
Previous Message | Jim Nasby | 2015-01-29 21:46:28 | Re: Providing catalog view to pg_hba.conf file - Patch submission |