[postgis-devel] Re: [postgis-users] create tables smarter

[Obe, Regina]

Yes you can pull the column types from the system tables.

e.g.

infomation_schema.tables (lists both tables and views)
infomation_schema.columns (lists all columns and datatypes even for
views)

are psuedo-ansi standard views built off of system tables and it lists
all the column data types.




-----Original Message-----
From: postgis-devel-bounces at postgis.refractions.net
[mailto:postgis-devel-bounces at postgis.refractions.net] On Behalf Of Mark
Cave-Ayland
Sent: Thursday, June 05, 2008 11:03 AM
To: PostGIS Development Discussion
Subject: Re: [postgis-devel] Re: [postgis-users] create tables smarter

Paul Ramsey wrote:

> I'd propose the utility process by basically a side effect of ANALYZE
> and clean up everything about GEOMETRY_COLUMNS. Remove dead entries,
> find new ones, etc, rather than just restricting itself to the one
> table it was (potentially) called on.
> 
> P.

In the case of using typmod, views would be interesting; as far as I can

tell, I think we can just pull the column types (which would include the

typmod) straight from pg_attribute using the view oid, but it would 
require some more experimentation...


ATB,

Mark.

-- 
Mark Cave-Ayland
Sirius Corporation - The Open Source Experts
http://www.siriusit.co.uk
T: +44 870 608 0063
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