PostgreSQL is an open source object-relational database system.

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Can't import OSM data to PostGIS, permission denied

I use Postgres 9.1 on Xubuntu 11.10. I've created a db 'aus' and user 'aus', granted ALL on the db to the user. Now I try to import the data, and it outputs this error: $ osm2pgsql --create ...
4
votes
1answer
306 views

generate 1-18 simple worldmap with mapnik

I have postgresql with postgis and mapnik, I need to generate a tiled world map with only country contours and country name that are displayed at all zoom levels, no extra info. How can I do it ...
5
votes
1answer
453 views

Efficiently querying a region-partitioned PostGIS table

I have two PostGIS tables: one of streets, and one of regions, which, apart from spanning the same spatial extent, are a priori unrelated. The streets queries I perform can be restricted to a given ...
4
votes
2answers
386 views

Why is osm2pgrouting not importing?

I installed pgrouting successfully and did a little import with a 20Mb file. Works good! Now I'm trying to import a file with the size of a country and it doesn't even start to import. The last 2 ...
5
votes
1answer
4k views

.NET Entity Framework with PostGIS?

Is it possible to use the .NET Entity Framework with PostGIS? I've reviewed a few options, including hookup it up with Npgsql using ...
6
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2answers
1k views

Creating a spatial PostGIS table as a result of a PostGIS query

When I want to store the results of a spatial query as another PostGIS table, what should I do? I am interested in identifying all residential buildings that fall within a set of parcels: CREATE ...
6
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2answers
376 views

Memory considerations for cloud based GeoStack

Some time ago I asked about hardware considerations of cloud based GeoStack implementation. As a follow up to this question There are some good pointers in related question already, but they mainly ...
17
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3answers
3k views

How can I optimize pgrouting for speed?

I am using pgrouting on a postgis database created through osm2pgrouting. It performs very good on a limited dataset (3.5k ways, all shortest path A* searches < 20 ms). However since I have ...
3
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2answers
3k views

Import Shapefile to Postgres

I am trying to import a shapefile to Postgres using the following: shp2pgsql c:\location\water_areas.shp water > water.sql I am receiving the following message: c:\location\water_areas.shp: ...
6
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1answer
4k views

How to import a raster into PostGIS?

I'm trying to follow the instructions here to load a raster into a PostGIS database: python raster2pgsql.py -s 4269 -I -r *.tif -F myschema.demelevation -o elev.sql I understand that I replace * ...
13
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6answers
13k views

How can I enable Shapefile GUI Loader in pgadmin3?

I have installed PostgreSQL 9.1 with PostGIS 1.5.3 on Ubuntu 11.10. I also installed pgadmin3 1.14.0-beta1, following this instructions. If I remember correctly, when I installed PostGIS on Windows ...
4
votes
1answer
339 views

DBMS and ArcSDE Architecture for Large (Mostly Non-Spatial) Dataset

I have ~1000 fixed points representing data collection stations with multiple sensors, and a csv that is ~4.5GB of values in the format: id pointid sensor measdatetime measvalue 50345 500 ...
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1answer
1k views

Mapserver/PostGIS Query Error

I'm having some difficulty understanding the error I am getting from my mapserver/postgis program. I have the following map file: MAP # start of map file NAME "sample" EXTENT ...
2
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1answer
3k views

Basic MapServer query of PostgreSQL/PostGIS database

I've just installed MapServer on a linux server and I am trying to understand how to display a basic map using a PostGIS database. I have displayed a shapefile in the browser, so I know that the ...
2
votes
1answer
361 views

Error while importing shapefile using shp2pgsql: Coordinate values are out of range

I have a shapefile with 180 points. I'm using shp2pgsql-gui via pgAdminIII. This is an error it gives me when I try to import shapefile. Failed in pgui_exec(): ERROR: Coordinate values are out of ...
11
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1answer
588 views

Nearest Neighbor Grouped Selection in QGIS

OK - so I have an interesting problem I am trying to solve. I have a list containing over 100,000 points in lat/long format which I have imported into qgis. Now, what I am trying to do here is group ...
5
votes
2answers
487 views

PostGIS: Approximating a house number from address range

I'm developing a reverse-geocoder for Canada. So far, given a lat/lng, I can find the nearest street (line segment), which includes line segment direction and address ranges for both sides of the ...
7
votes
4answers
1k views

Rename postGIS table and updating the GeoServer?

I want to rename one of my postGIS tables. However, when I do this by applying a simple ALTER TABLE old_name RENAME TO new_name; The spatial data, as I understand it, isn't updated with the new ...
5
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2answers
430 views

ArcMap Draw Camera Range with ArcPy

i am working on some camera data. I have some points which consist of azimuth, angle, distance, and of course coordinate field attributes. In arcmap I want to draw shapes like this: The shape is ...
6
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1answer
1k views

PostGIS and invalid SRIDs

I'm having difficulty with a PostGIS query. I am trying to query my database (world_countries) using a bounding box drawn on a google web map. The objective of this query is to find any countries that ...
5
votes
3answers
1k views

Developing Web Application For Map [duplicate]

I have huge data of maps usually most of the table are co-ordinates and the other are raster maps stored in SQL server 2008 and PostGres Server. I am using desktop application to analyse the data. ...
2
votes
1answer
276 views

How to modify area polygon in postgres? [duplicate]

Possible Duplicate: Automated correction of parcel geometry based on area measure I need a function to modify area polygon in postgres the major probleme is automated correction of parcel ...
5
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2answers
454 views

PostGIS ST_Distance vs. pgRouting

I am looking to create a city directory web app, and the site will need to be able to calculate distances between two geospatial points (like the distance between the user and a restaurant, or the ...
10
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2answers
4k views

Finding the closest Geometry in PostGIS

I've been looking over the PostGIS "API" of functions, and I notice that most of them take two elements to compare. For example, the ST_Distance function takes two geometry/geography elements to find ...
3
votes
4answers
2k views

Migration from postgresql 8.4 to postgresql 9.0, postgis 1.5 involved

Im migrating from 8.4 to 9.0, in pg8.4 i have postgis 1.5.1 and in 9.0 im just installed 1.5.2. I decided to dump the postgis databases before the pg_upgrade command, and delete them, planning to ...
4
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1answer
3k views

Why is PostGIS query not using spatial index?

I am having an issue with a spatial query that is not making use of indexes. My schema is: CREATE TABLE geoplanet_place ( woeid integer NOT NULL, "name" character varying(300) NOT NULL, ...
6
votes
3answers
2k views

How to load OSM data into PostGIS preserving all Tags?

I am new to the field of GIS and am trying to view source tags in OSM. I have downloaded the shapefiles from http://downloads.cloudmade.com and have loaded them into Postgres. When I view the data, I ...
2
votes
2answers
246 views

File paths in a PostGIS Table in QGIS

I have a PostGIS table which I have stored the location of some viewpoint photographs. I would like to store the location of the photo file in a field, but when I add a file path in the attribute ...
6
votes
2answers
730 views

How to get an array of simple lines from one multipoint linestring in PostGIS?

How can I extract some LINESTRING consisting of 3 or more POINTs to several LINESTRINGs each of 2 POINTs in PostGIS?
5
votes
2answers
2k views

GDAL Python bindings not picking up OGR PostgreSQL driver

I have a windows server (Microsoft Windows Server 2003) with: Python 2.7, PostgreSQL 9.04-1, GDAL 1.8.1 (installed from the windows installer (gdal-18-1500-core.msi) hosted at ...
4
votes
2answers
460 views

Does PostGIS not work with psql?

I have a sql script that creates several tables, a trigger, and a trigger function. All the commands work in pgAdmin when I execute them in the "Query" section. My goal is to put all these commands ...
7
votes
4answers
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How to fix “Access to database denied” when accessing PostgreSQL?

I got a tiny problem regarding connection to my server. What should we do when this message appears in front of you? I've done several changes in the *pg_hba.conf* entry but yet to succeed. Any ...
3
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1answer
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PostGIS Error: type “geography” does not exist

I just upgraded my development machine to Windows 7 and am therefore reinstalling PostgreSQL and PostGIS. I used the Postgres Plus installer, as recommended on the Postgres website, and followed this ...
5
votes
1answer
515 views

Promotion radius in miles around venues using PostGIS

Bear with me as I'm new to PostGIS and GIS in general. I also don't know the domain well enough to create a good title for this post! Here is what I'm trying to accomplish: I have Venues in my ...
13
votes
6answers
8k views

How to use ST_Intersection?

Here's a quick summary about what I'm trying to do: I have 3 tables in Postgres, 'a' and 'b', each have a Polygon column, and 'c' has a Point column. What I'm trying to do here is to get the ...
3
votes
2answers
536 views

Updating Apps on OpenGEO suite Community Edition

I would like to update PostgreSQL and PostGIS on Opengeo CE to a newer version, maybe the other apps too (geoserver, openlayers, etc). Can it be done? Can someone point me the right direction? ...
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3answers
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In PostGIS is it possible to create a View with a unique ID?

When I create a view in PostGIS is there any way to add a unique ID to that view? Just like the "gid" field in any other PostGIS table? Edit: Sorry I should have included this in the original post. I ...
5
votes
1answer
4k views

qgis to local postgis connection - fails

It seems pretty clear I cannot connect to a local postgresql installation out of QGIS. This is my first experience with PostGIS. I am using PostgreSQL 9.0 on a win7 machine. I can see the successful ...
6
votes
1answer
916 views

Intersection of multiple layers in PostGIS

I need to write PL/pgSQL stored procedure for calculation of intersection of multiple layers. For example, for three layers A, B, C this function should return ABC geometry: Function takes as input ...
2
votes
1answer
367 views

How to create source and target ID columns for a linestring table in PostGIS?

I have table paths_3D which has column "the_geom". I need to create a new column source_id which will have starting points from the geom. This statement doesn't work: ALTER TABLE paths_3d ADD COLUMN ...
15
votes
2answers
2k views

Mixing geometry types in one PostGIS table

I've faced with the following problem. I have to migrate from Oracle database to PostgreSQL+PostGIS. Currently all geometries of all types are stored in one table and each record contains "lid" field ...
5
votes
2answers
392 views

Selecting POIs around specific buildings using PostGIS

The problem: I need to select, for each residential building in my table that has say at least 2 pharmacies and 2 education centers within a radius of 1km, all POIs (pharmacies, comercial centres, ...
3
votes
1answer
2k views

Casting a Geography type in PostGIS

I have the following table defined, which uses PostGIS geography. CREATE TABLE test_geog ( id SERIAL PRIMARY KEY, boundary GEOGRAPHY(Polygon) ); I added the following test polygon to the ...
9
votes
1answer
153 views

How to get the contributors on Open Street Map

I have put my osm file in base thanks to osm2pgsql and I am looking a way to get the contributor list. I have searched in my database and haven't found so much... and the osm wiki about the osm2pgsql ...
10
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4answers
842 views

Open Street Map and PostgreSQL what do I exactly need?

I make my first steps in the GIS world and everything is very new for me even if I work on a "huge" project (ie: for a single programmer) very related to maps. My project needs to know informations ...
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2answers
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QGis import partial PostGIS layer using query builder

I'm sorry, but I'm terribly new to the GIS scene (and PostGIS & QGis). I have loaded a whole bunch of OpenStreetMap data into a PostGIS database and successfully drawn a map using Mapnik. Now I ...
3
votes
2answers
488 views

pgRouting: Is it possible to do multiple (concurrent) Dijkstra/A*/A_shooting_star queries at a time?

Disclaimer: the author of the question is a novice in PostgreSQL and pgRouting. As I understand doing a shortest path query in pgRouting is a complicated SELECT underneath. And as I know unlike any ...
4
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1answer
345 views

Sort by geometry using INHERITS?

hope everyone's doing well. I have a statewide point data set (parent table: 600K rows, 500 columns) I need to analyze at multiple scales based on several different spatial divisions. I'll also need ...
8
votes
2answers
361 views

PostGIS- GROUP BY for continuous data values?

In the sample code for the PostGIS ST_ConvexHull function, multiple polygons would be created based upon different, discrete values found in the field "disease_type". --Get estimate of infected area ...
5
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2answers
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How to get multiple shortest paths with PgRouting in one query?

I want to run shortest path algorithm on multiple source&target pairs at once and get a result as a table and process it then. How do I do this? This query does not work: SELECT a.source, ...