From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [PATCHES] Non-colliding auto generated names |
Date: | 2003-03-05 15:36:06 |
Message-ID: | 200303051536.h25Fa6P08845@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-hackers pgsql-patches |
Ewe. There would no longer be a guaranteed name for the serial column
sequence. Of course, pg_depend has the information, but how do you get
at that when you create the dump file, and be _sure_ you are going to
hit the right name, especially if you restore only part of the dump.
Seems this kills the idea of this patch. With 64-byte names, let's see
if we still get complaints about name conflicts.
---------------------------------------------------------------------------
Christopher Kings-Lynne wrote:
> OK,
>
> I have discovered a problem with my auto-naming patch. It's do to with
> dumping serial columns with pg_dump, eg:
>
> --
> -- TOC entry 2 (OID 1004551)
> -- Name: users_users; Type: TABLE; Schema: public; Owner: chriskl
> --
>
> CREATE TABLE users_users (
> userid serial NOT NULL,
> firstname character varying(255) NOT NULL,
> lastname character varying(255) NOT NULL,
> email character varying(255) NOT NULL
> );
>
> -- DATA DUMPED HERE
>
> --
> -- TOC entry 4 (OID 1004305)
> -- Name: users_users_userid_seq; Type: SEQUENCE SET; Schema: public; Owner:
> chriskl
> --
>
> SELECT pg_catalog.setval ('users_users_userid_seq', 126, true);
>
>
> How do we fix this problem?? Perhaps instead of a hard-coded sequence
> string, we can sub-SELECT for it...?
>
> Chris
>
>
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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