Re: PG10 Partitioned tables and relation_is_updatable()

Joe Conway <mail@joeconway.com>

From: Joe Conway <mail@joeconway.com>
To: Dean Rasheed <dean.a.rasheed@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2017-06-11T15:55:21Z
Lists: pgsql-hackers
On 06/11/2017 04:32 AM, Dean Rasheed wrote:
> It looks like relation_is_updatable() didn't get the message about
> partitioned tables. Thus, for example, information_schema.views and
> information_schema.columns report that simple views built on top of
> partitioned tables are non-updatable, which is wrong. Attached is a
> patch to fix this.

> I think this kind of omission is an easy mistake to make when adding a
> new relkind, so it might be worth having more pairs of eyes looking
> out for more of the same. I did a quick scan of the rewriter code
> (prompted by the recent similar omission for RLS on partitioned
> tables) and I didn't find any more problems there, but I haven't
> looked elsewhere yet.

Yeah, I noticed the same while working on the RLS related patch. I did
not see anything else in rewriteHandler.c but it is probably worth
looking wider for other omissions.

Joe

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PostgreSQL Support for Secure Enterprises
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Commits

  1. Teach PL/pgSQL about partitioned tables.

  2. Teach RemoveRoleFromObjectPolicy() about partitioned tables.

  3. Teach relation_is_updatable() about partitioned tables.