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* obtaining column names from tables or views
@ 2007-11-28 15:13 John van Zantvoort <snl.jydawg@gmail.com>
0 siblings, 1 reply; 2+ messages in thread
From: John van Zantvoort @ 2007-11-28 15:13 UTC (permalink / raw)
To: pgsql-sql
moin,
I've got a question. I'm scripting against an existing postgresql database
environment and need to tweak queries based on the columns in the views or
tables, how can if find these w/o querying the tables or views.
Currently I execute the querie and collect the columns but this is rather
expensive, silly and fails when the table or view is empty.
--
Met vriendelijke groeten/with kind regards
John van Zantvoort
---
Most burning issues generate far more heat than light.
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^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: obtaining column names from tables or views
@ 2007-11-28 15:29 Richard Huxton <dev@archonet.com>
parent: John van Zantvoort <snl.jydawg@gmail.com>
0 siblings, 0 replies; 2+ messages in thread
From: Richard Huxton @ 2007-11-28 15:29 UTC (permalink / raw)
To: John van Zantvoort <snl.jydawg@gmail.com>; +Cc: pgsql-sql
John van Zantvoort wrote:
> moin,
>
> I've got a question. I'm scripting against an existing postgresql database
> environment and need to tweak queries based on the columns in the views or
> tables, how can if find these w/o querying the tables or views.
There is a whole section of the manual devoted to the system catalogues:
http://www.postgresql.org/docs/8.2/static/catalogs.html
Or there's the "information schema" which is in a standardised layout
but doesn't include PG-specific details.
http://www.postgresql.org/docs/8.2/static/information-schema.html
--
Richard Huxton
Archonet Ltd
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