Horton

Re: Schema variables - new implementation for Postgres 15

Julien Rouhaud <rjuju123@gmail.com>

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From: Julien Rouhaud <rjuju123@gmail.com>
To: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Erik Rijkers <er@xs4all.nl>, Dean Rasheed <dean.a.rasheed@gmail.com>, Joel Jacobson <joel@compiler.org>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-08-23T01:57:37Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Allow underscores in integer and numeric constants.

  2. Remove special outfuncs/readfuncs handling of RangeVar.catalogname.

  3. Remove extra space from dumped ALTER DEFAULT PRIVILEGES.

  4. Create FKs properly when attaching table as partition

  5. psql: improve tab-complete's handling of variant SQL names.

On Mon, Aug 22, 2022 at 09:13:39PM +0200, Pavel Stehule wrote:
> po 22. 8. 2022 v 9:33 odesílatel Julien Rouhaud <rjuju123@gmail.com> napsal:
>
> >
> > - you define new AclMode READ and WRITE.  Those bits are precious and I
> > don't
> >   think it's ok to consume 2 bits for session variables, especially since
> > those
> >   are the last two bits available since the recent GUC access control patch
> >   (ACL_SET and ACL_ALTER_SYSTEM).  Maybe we could existing INSERT and
> > UPDATE
> >   privileges instead, like it's done for sequences?
> >
> >
> I have not a strong opinion about it.  AclMode is uint32 - so I think there
> are still 15bites reserved. I think so UPDATE and SELECT rights can work,
> but maybe it is better to use separate rights WRITE, READ to be stronger
> signalized so the variable is not the relation. On other hand large objects
> use ACL_UPDATE, ACL_SELECT too, and it works. So I am neutral in this
> question. Has somebody here some opinion on this point? If not I'll modify
> the patch like Julien proposes.

Actually no, because AclMode is also used to store the grant option part.  The
comment before AclMode warns about it:

 * The present representation of AclItem limits us to 16 distinct rights,
 * even though AclMode is defined as uint32.  See utils/acl.h.