Lists: | pgsql-hackers |
---|
From: | Steve Jackson <asdasdfwea(at)asweweasdv(dot)net> |
---|---|
To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | System Tables |
Date: | 2002-11-28 07:32:46 |
Message-ID: | 3de5c69d_2@news.tiscalinet.ch |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Lists: | pgsql-hackers |
Hi
Has anyone of you a good pointer to a description of where in the system
tables I may find what informations? I try to code a generic procedure
which gets information (like field type, field length, foreign keys...)
about tables and fields from a system table.
Thank you for your help in advance
sj
From: | Lee Kindness <lkindness(at)csl(dot)co(dot)uk> |
---|---|
To: | Steve Jackson <asdasdfwea(at)asweweasdv(dot)net> |
Cc: | Lee Kindness <lkindness(at)csl(dot)co(dot)uk>, pgsql-hackers(at)postgresql(dot)org |
Subject: | System Tables |
Date: | 2002-11-28 18:03:26 |
Message-ID: | 15846.23150.63277.116164@kelvin.csl.co.uk |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Lists: | pgsql-hackers |
See:
http://www.us.postgresql.org/users-lounge/docs/7.2/postgres/catalogs.html
for PostgreSQL 7.2.x, for 7.3 see:
http://developer.postgresql.org/docs/postgres/catalogs.html
Lee.
Steve Jackson writes:
> Hi
>
> Has anyone of you a good pointer to a description of where in the system
> tables I may find what informations? I try to code a generic procedure
> which gets information (like field type, field length, foreign keys...)
> about tables and fields from a system table.
>
> Thank you for your help in advance
From: | Neil Conway <neilc(at)samurai(dot)com> |
---|---|
To: | Steve Jackson <asdasdfwea(at)asweweasdv(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: System Tables |
Date: | 2002-11-28 18:08:47 |
Message-ID: | 1038506927.383.17.camel@tokyo |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Lists: | pgsql-hackers |
On Thu, 2002-11-28 at 02:32, Steve Jackson wrote:
> Has anyone of you a good pointer to a description of where in the system
> tables I may find what informations?
The PostgreSQL Developer's Guide has some information:
http://developer.postgresql.org/docs/postgres/catalogs.html
But IIRC it might be a little out of date. Also, starting psql with "-E"
and taking a look at the queries it uses to generate data is often
useful.
Cheers,
Neil
--
Neil Conway <neilc(at)samurai(dot)com> || PGP Key ID: DB3C29FC
From: | "Andrew J(dot) Kopciuch" <akopciuch(at)bddf(dot)ca> |
---|---|
To: | Steve Jackson <asdasdfwea(at)asweweasdv(dot)net>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: System Tables |
Date: | 2002-11-28 18:17:13 |
Message-ID: | 200211281117.13393.akopciuch@bddf.ca |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Lists: | pgsql-hackers |
On Thursday 28 November 2002 00:32, Steve Jackson wrote:
> Hi
>
> Has anyone of you a good pointer to a description of where in the system
> tables I may find what informations? I try to code a generic procedure
> which gets information (like field type, field length, foreign keys...)
> about tables and fields from a system table.
>
Read the man page for psql.
Check out the section for PSQL META_COMMANDS.
Sounds like everything you need is in there.
Andy
From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Neil Conway <neilc(at)samurai(dot)com> |
Cc: | Steve Jackson <asdasdfwea(at)asweweasdv(dot)net>, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: System Tables |
Date: | 2002-11-28 22:59:04 |
Message-ID: | 16913.1038524344@sss.pgh.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Lists: | pgsql-hackers |
Neil Conway <neilc(at)samurai(dot)com> writes:
>> Has anyone of you a good pointer to a description of where in the system
>> tables I may find what informations?
> The PostgreSQL Developer's Guide has some information:
> http://developer.postgresql.org/docs/postgres/catalogs.html
> But IIRC it might be a little out of date.
One would hope not. It's taken us awhile to finish the work of
documenting every system catalog, but as of 7.3 they are all in there.
I intend to crack the whip as much as necessary to ensure that these
docs get updated whenever someone changes the catalogs ;-)
Actually, pointing people to the developer docs is more likely to create
the reverse problem: what they read there may be too new for the release
they are actually using.
regards, tom lane