PostgreSQL is an open source object-relational database system.

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PostGIS problem finding FK to PK

I have 2 tables in a postgres db to which I need to establish a 1-m relationship between. One of the tables has geometry, the other table does not have geometry but contain fields that describe the ...
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137 views

Hibernate spatial “org.hibernate.integrator.spi.Integrator” error

I use hibernate-spatial library and I encounter with this error: HTTP Status 500 - Handler processing failed; nested exception is java.util.ServiceConfigurationError: ...
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73 views

How to create Spatial Reference System in QGIS?

I have some Attribute and the coordinate and the coordinate reference system. I want to create a DBmanagamet form my spatial data. To do that I want to create one table with name Spa_ref_sys, but I ...
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1answer
117 views

GROUP BY on geography in postgres 9.4.0 returns wrong/different results

table definition: CREATE TABLE search ( id bigserial NOT NULL, location geography(Point,4326) NOT NULL, location_aggregated geography(Point,4326) NOT NULL, created timestamp with time zone ...
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3answers
1k views

Qgis is slow with complex 'postgis query' layer. How to speed up?

I have a postgis layer in Qgis that is a result of a complex query. Every screen update, Qgis runs the Query again and that's slow. Any suggestion on how to speed up? EDIT - Here is the query: ...
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55 views

Point inside st_dwithin with wrong results

I want to get all points, that are in the same area. Therefore, I have the following query for my table check: SELECT l.location_id, l.location FROM check l INNER JOIN check l2 ON ST_DWithin ...
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1answer
1k views

Create feature task could not be completed because coordinates or measures are out of bounds?

I'm trying to create a layer based on a feature class, in ArcMap (I've created a geodatabase from ArcCatalog and linked it to PostgreSQL). The feature class that I've created is registered as ...
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2answers
93 views

How to get the number of polygons of a geometry in PostgreSQL

How can I get the number of polygons that form a geometry in PostgreSQL? For example U.S map has a lot of islands in addition to its main lands. I want to count these islands plus the main lands.
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45 views

display thematic map using openlayers

iam displaying map from mapfile(mapserver) in c# using openlayers mapfile is connected to postgres it is working well but now i want to diaplay thematic map using the postgrs database using ...
2
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0answers
118 views

Postgres OSM planet reverse geocoding

i'm building function for reverse geocoding in Postgres using PostGIS function's. For now i was able to clean up all the data that was useless to me(rivers, buildings,etc.). I got 3 ...
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1answer
83 views

How to transform isolines to isopolygons with postgis?

I have a table a postgis table of isolines that's defined like this: CREATE TABLE myisolines ( gid serial NOT NULL, isotime timestamp without timezone, val numeric(10,4), geom ...
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3answers
91 views

Calculate Color of Object So No Adjacent Objects Repeat

I am attempting to assign one of 16 colors to map objects (e.g. counties, states, ZIP Codes, etc.) so that no two adjacent objects share the same color. I'm seeing tons of articles online about ...
4
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1answer
66 views

Using more than one ST_function in one query

I have got stuck with a dynamic analysis that I would like to include in a project I am working with. I want to save the query in the project file or make it to a view in my database. I have tried a ...
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0answers
40 views

Batch load multiple shapefiles to Postgis

According to the shp2pgsql help, the options drop, append, create and prepare are mutually exclusive. So, if I want to create a table from a shape and then append multiple other shapefiles, I do ...
6
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1answer
141 views

How to create ArcSDE Geodatabase in PostgreSQL without ArcGIS Desktop?

I am programming a small application using Arcobjects, and I need to create an ArcSDE geodatabase on PostgreSQL. In ArcSDE at 10.2 there is no Post Installation Wizard. How do I create a Geodatabase ...
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2answers
93 views

How to reproduce FME Change Detector results in PostGIS?

we would like to use the function change detector from FME in PostGIS. We had a try with the following SQL-Statements but the function doesn´t work. There are no results in the end. The single ...
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34 views

Geoserver SLD repeat = PropertyName

i've got Geoserver up and running, rendering spatial data in Openlayers, based on a view from a Postgresql/Postgis database. I'm trying to get most of the values for the SLD file by the object ...
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1answer
499 views

How to update/delete data from a datagridview?

I wanna be able to update/delete data from a datagridview, and when I do that of course the data in my PostgreSQL database should be edited too. So I've thought about giving the user the ability to ...
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2answers
114 views

Load multi CSV files from local disc to Postgres

I want to load a lot of CSV files from a local disc in an already created postgres database. Which is the easiest way to do that? By using SQL or Java? I suppose that I need a loop for doing that, but ...
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4answers
500 views

Stuck in loading raster to PostGIS

I am running running Mac OS X (10.7.5), PostgreSQL (9.2) and PostGIS (2.0.2) (installed via Postgres.app). The PostGIS extension seems to work perfectly with vector and raster layers. Once I enable ...
3
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1answer
76 views

From hundreds of shapefiles to PostGIS with some kind of directory/file structure

We have more than 700 shapefiles which we will import in a PostgreSQL/PostGIS database. We want to use a single database to make joins on our tables without using foreign database wrapper. Our data ...
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2answers
266 views

Find headwater polygons

This is a follow up question to this question. I have a river network (multiline) and some drainage polygons (see picture below). My goal is to select only the headwater polygons (green). With ...
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2answers
91 views

Find closest points in routing network for a set of points to pick shortest route

I have the following WITH SQL Query which does select a set of filling stations along a route within the distance of 1000m. In the SQL statement I fetch 1 Point from the station and search the closest ...
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2answers
423 views

Find start of river

Edit: Follow-up question here (= Find headwater polygons). How can I determine the start of a river in PostGIS? I have a river network (Multiline) and want to find the startpoints of the rivers. ...
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43 views

Invoke PostGIS geocode function using Python

I have a PostGIS Geocoder built with using Tiger data. Using SQL, I am able to execute all database functions and queries. I want to use it with my Python program. One of the option would be to write ...
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1answer
67 views

Connect to postgresql using ARCSDESQLExecute

I'm trying to connect to a postgresql database using ARCSDESQLExecute from ArcPy. When running my script as stand alone (debug from pyscripter) it works fine. When running my script as a tool from ...
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128 views

Error installing PGRouting database extensions

Im trying to install pgRouting and I cannot reach the end of the way because of the following error: psql:/home/user/share/postgresql/contrib/pgrouting-2.0/pgrouting.sql:2459: ERROR: could not load ...
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52 views

Open source UML modeling software (GIS)

I am wondering is there any opensource UML to Postgresql Mysql tables conversion software which also includes the geospatial datatypes ? Note:I want conversion from UML to database. and NOT ...
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1answer
116 views

Geometry to Shapefile

From importing the shapefile to postgis, its geometry is added to the database postgresql. The question, how can I load the shapefile in the Visual Basic.Net using the geometry in the database ?
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3answers
592 views

How to pull lat/lng from a map canvas and update a database

So if i want to pull out lat/lngs after user clicks on a map canvas (lat/lngs are pulled using any javascript API (leaflet, wax etc.) and add this to a postgresql database using a query, how do i do ...
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1answer
229 views

Postgis query to convert UTM to Lat long

I want Postgres/PostGIS queries to convert UTM coordinates from UTM 43N projection to Decimal Degrees 32643 projection. select ST_X(the_geom), ST_X(the_geom) from table
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1answer
100 views

Import of OSM data into PostgreSQL with osm2pgsql polygon problem

I've mananged to import my great-britain osm file successfully into postgres and I can query everything fine. osm2pgsql -s -j -G -l --number-processes 8 -K -U james -C 10000 -d osm myfile.osm I'm ...
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1answer
37 views

postgres db in mapserver

I am trying to generate a map in mapserver by connecting a postgres database but it is not displaying any maps. My table name is a19010100001001. mapfile is LAYER.map MAP NAME "MP" SIZE 400 400 ...
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1answer
81 views

How to Specify FID column name in shp2pgsql

In ogr2ogr I can specify the name of FID column using the option -lco FID={columnname} when importing a spatial data in PostGIS database. I am using shp2pgsql in case of shapefile and cannot find a ...
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1answer
128 views

Polygon intersection with LineString in PostGis

I have a table which contains GPS coordinates at certain times. I created a LINESTRING from them ordered from the oldest to newest. I also have a POLYGON and I would like to determine the subset of ...
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112 views

Displaying Google Map using MapServer, C# and PostgreSQL?

I am displaying Google Map (MapServer) by using C#. And also highlighting the districts on the Google Map using PostgreSQL data. Every thing is working well but when I use any options like zoom in, ...
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1answer
65 views

How to load all states of TIGER into PostgreSQL?

I downloaded TIGER2014 from the Census FTP and I was wondering how I would be able to load all the geometries at once. I learned about loader_generate_script and loader_generate_nation_script but I ...
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3answers
190 views

Installing QGis such that it will work with the Postgres.app implementation of PostgreSQL on Mac (Lion) (open to alternative implementations)

I just got a new mac and am getting everything installed on it (postgres, postgis, qgis, grass, gdal, brew, ruby, etc) and am about to install QGis. QGis is a great tool for me, except for that with ...
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1answer
418 views

QGIS loads PostGIS layers but DBManager can't connect

DB Manager can't connect to PostgreSQL, but "Add PostGIS Layer" can. My eventual goal is to save created layers to PostGIS. I assume I can do this using the DBManager Tool. I can alternatively use ...
2
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2answers
153 views

Finding all ways that are partly within a bounding box

I'm trying to write a query that will return all OSM ways which are contained within a bounding box of min/max gps coordinates. I get these cooridinates from the greater london bounding box on ...
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0answers
86 views

Is there any VRP solver in Pgrouting 2.0?

after looking at older posts and googling for a while i guess there is not vrp solver (multiple trucks). there was DARP in pgr1.x but i can't see it in 2.x. i found a lot of information on ...
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0answers
41 views

line features show up as polygons in GeoServer

the layers are located in a postgreSQL Enterprise Geodatabase. I created a new line feature class and added it to the database and then added it to geoserver. But in geoserver it comes in as a polygon ...
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1answer
556 views

Loading Multiple CSV Files into PostgreSQL Table

I am having multiple CSV files. Those CSV files are the log files created as a result of running a windows batch file. The location of these CSV files lies on the server and i want all these CSV files ...
2
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0answers
106 views

How to get Geography data to GeoJSON in PostgreSQL?

I am using PostgreSQL database and there is a field in a table(area), i.e., public.geography(Points,4326). It contains below type of records "0101000020E6100000BA83D89942334540780B24287ED051C0" I ...
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1answer
28 views

How to find out postgis.backend?

How can I find out which postgis.backend (geos or sfcgal) I have?
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113 views

Does ST_Intersection work in 3D?

I am using "ST_Intersection" between two 3D lines which I believe do not intersect, but the result gives me their intersection. SELECT ST_ASText(ST_Intersection( ST_GeomFromText('LINESTRING( ...
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1answer
54 views

ERROR: attempt to redefine parameter “postgis.backend”

I just install "SFCGAL". When I use "ST_3DIntersection", It get below error: ERROR: attempt to redefine parameter "postgis.backend" SQL state: XX000 How can I fix? I already saw ...
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2answers
62 views

Can GeoServer Mosaic extension footprints be something other than a shapefile?

According to the GeoServer documentation for the Image Mosaic extension... http://docs.geoserver.org/2.4.x/en/user/tutorials/imagemosaic_footprint/imagemosaic_footprint.html It asks for a shapefile ...
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1answer
48 views

How to upgrade an PostgreSQL 8.3(32-bit)/ArcSDE 10.0 database to PostgreSQL 9.2(64-bit)/ArcGIS 10.2?

I need to upgrade a large production PG8.3(32-bit)/Arc10.0 database with a fair amount of programming (that has circular references) as-is. This is a system that I inherited, so I don't have the ...
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1answer
53 views

Postgres: plpgsql combine ST_Overlaps and ST_Intersects

I have a question regarding creating a trigger function in postgres with 2 conditions: when creating a linestring in QGIS their must either overlap nor intersect. So i wrote 2 function, each working ...