[postgis-users] Query for all the polygon tables

Matt Lynch matt at terraEngine.com
Tue Nov 18 14:39:39 PST 2003


Hi Paul, 

I have used addgeometry column for all my tables, so how would I do the
query?

Thanks,

Matt

-----Original Message-----
From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Paul
Ramsey
Sent: Tuesday, November 18, 2003 2:40 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] Query for all the polygon tables


If you manage your columns carefully using addgeometrycolumn and 
dropgeometrycolumn, you should be able to do this with a trivial query 
against GEOMETRY_COLUMNS.

Paul

Matt Lynch wrote:

> Hi,
> 
> I would like to be able to query for all the polygon tables in a 
> specific postgis database.
> 
> I dug around on the net and figured out how to find all the tables, 
> that is
> 
> SELECT c.relname, 'table'::text, u.usename FROM pg_class c,pg_user u 
> WHERE c.relowner = u.usesysid AND c.relkind='r' AND NOT EXISTS (SELECT

> 1 FROM pg_views WHERE viewname=c.relname) AND c.relname !~ '^pg_';
> 
> Now I need some help to restrict to the polygon tables.
> 
> Any suggestions?
> 
> Thanks,
> 
> Matt
> 
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-- 
       __
      /
      | Paul Ramsey
      | Refractions Research
      | Email: pramsey at refractions.net
      | Phone: (250) 885-0632
      \_


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