Hello Gianvito,
AddGeometryColumns does an additional operation, which is updating the table
public.geometry_columns, used by most of OS GIS software to find out what is
the column that contains the geometry, it's type and SRID. Also this
function creates all the constraints necessary to use these
Thanks both for your answers... I'm going to try Leo's solution.
Matt
On Wed, Jul 15, 2009 at 2:29 PM, Matthew Pettis wrote:
> Hi,
>
> I’m trying to find the right incantation on how to create a new table with
> a geometry column from an old one efficiently. Here’s the essential query I
> want t
Matthew,
You want to create the table first
something like
CREATE TABLE shp_mcd_centroid(gid SERIAL PRIMARY KEY, mcd_name varchar(100),
type varchar(100));
then do the
SELECT AddGeometryColumn
(http://postgis.refractions.net/documentation/manual-1.4.0SVN/AddGeometryCol
umn.html - w
I think you must use a bidimensional field:
...'MULTIPOINT',2)...
Eduin Yesid Carrillo Vega
Ingeniero Civil, Esp. Sistemas de Información Geográfica
Grupo IDE & GIG
Centro de Investigación y Desarrollo en Información Geográfica
Instituto Geográfico Agustín Codazzi - IGAC
Cr 30 48-51
Tel +57 1 369
Hi,
I’m trying to find the right incantation on how to create a new table with a
geometry column from an old one efficiently. Here’s the essential query I
want to do...
CREATE TABLE shp_mcd_centroids AS
SELECT DISTINCT
mcd_name,
"t
Hi all,
I read on the PostGIS documentation that I should use AddGeometryColumn
function to avoid software compatibility problems.
Btw...I need to define a type that contains two varchars and a geometry
column...how should I do it?
Thanks___
postgis-us
Hi Stefan.
Geometry Outputs[1] functions (ST_As*) allow you output geometric
fields as geometric representations. ST_AsKML do not return full KML
documents, but descendant objects of [2] abstract object in
KML.
This is a best expression of your query:
SELECT ST_AsKML(the_geom)
FROM my_spatial_ta
I also use OGR to export, here is an example with PHP
$query = sprintf('select * from %s%s as a;',$schema,$layerName);
$result = pg_query($dbconn, $query);
$ogr2ogr = 'CALL D:\\ms4w\\tools\\gdal-ogr\\ogr2ogr.exe';
//where the file goes
$stock = 'd:\\ms4w\\Apache\\htdocs\\tmp\\';
$shellcommand =
I'm using Druid (http://druid.sourceforge.net/) allowing to generate
ER views, HTML, PDF docs, to reverse existing database
can also generate scripts for several targets (oracle, mysql, pg, etc)
Nicolas Ribot
___
postgis-users mailing list
postgis-users@
juapab...@tutopia.com wrote:
Good day
I would appreciate some guidance to install poistgis with
postgreSQL7.3.7, I generate an error when configuring
. / configure - with-psql = yes or. / configure - with-pgsql = / usr /
local / pgsql / include
configure and modify or edit PGCONFIG =
Michael Savarese wrote:
PostgreSQL PostGIS newbie here. On windows XP box, I've installed
postgresql 8.3.7 as server and followed with postgis 1.3.6 with
application stack builder. didn't get any errors after several attempts.
When using postgis manager plugin on QGIS version 1.0.2 Kore, it sa
Andreas Laggner wrote:
Hello List,
i have a server only running PostGIS with 32GB RAM (no other
applications), but linux is swapping when i start more queries and has
still 26GB memory cached!!
In my experience PostGIS becomes very slow if linux swaps - so i put the
maximum of RAM into the PC.
On 07/14/2009 08:42 PM, Michael Savarese wrote:
PostgreSQL PostGIS newbie here. On windows XP box, I've installed
postgresql 8.3.7 as server and followed with postgis 1.3.6 with
application stack builder. didn't get any errors after several
attempts. When using postgis manager plugin on QGIS ve
Ah, thanks a lot! That sounds great!
However, when inserting the function and executing this:
SELECT askml('my_title', 'description', collect(the_geom)) FROM
(SELECT c.the_geom FROM countries_view AS c) AS foo
I get this error:
ERROR: geometry_to_kml: 'GeometryCollection' geometry type no
14 matches
Mail list logo
