Tagged Questions

PostgreSQL is an open source object-relational database system.

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3
votes
0answers
48 views

Create a Shape file from Sql dump file

I am trying to map data by querying a table called xyz. I need to show the the_geom data on the map. I have below query in my mapserver .map file: DATA "the_geom from xyz using unique id using ...
2
votes
1answer
59 views

Order by geometry columns

I am wondering how it really works, I mean "order by" statement when it comes to geometry/geography columns in postgis/postgresql. Besides that really need a way gather rows from a table with a point ...
0
votes
0answers
21 views

at which location to run psql2shp command in linux [duplicate]

I have linux system which I have connected remotely and I am not able to use $psql2shp command in the command line. I went to /usr/local/pgsql/data to run the command but I was unable to run. I dont ...
0
votes
1answer
45 views

Rollback error when restoring SQL dump file in postgresql using PSQL console via Pgadmin

I am trying to restore a pg_dump SQL file into my postgresql database using PSQL console , where I typed the below command: \i 'c:/../path/to/sample.sql' when I run this I get an error saying ...
2
votes
2answers
68 views

Where to type pgsql2shp command

How to convert post gis database into shapefile, I found that I need to use pgsql2shp command on postgis database query , But how to use it and where to use it. Do I have to use it in the postgre sql ...
1
vote
1answer
47 views

Using pgrouting and algorithms in PostgreSQL?

I am trying my first pgrouting in a roads shape file i load it in postgresql first, the table has osm_id gid name ref type oneway maxspeed after i add columns source and target in table ALTER ...
2
votes
1answer
36 views

How to populate geography point using ST_MakePoint(long, lat)

I have a table called customer_campaign, and there is an empty column geom(geography) in it. So I want to fill it up by using ST_MakePoint(long, lat) in PostGIS, lat and long are two columns in the ...
0
votes
0answers
36 views

Geoserver ( Java.exe ) cause server to run 100%

Our server runs at 100% CPU when using map services build on geoserver + postgresql I can not find anything in geoserver logs. It is Java.exe takes 100% CPU and because of that server can not do ...
1
vote
3answers
101 views

How to export streets in a certain area from one shapefile to a new shapefile?

I have a shapefile with the roads from Europe and I want to export in a new shapefile only the roads from Greece. I tried to delete the other roads but there are too many and I have no attribute to ...
0
votes
1answer
21 views

Lost Foreign key during conversion of SQLite to PostgreSQL using ogr2ogr

I want to centralise several small sqlite databases into a single, big, postgresql database. I am using ogr2ogr to convert my sqlite / spatialite (v3.7.17 / v4.1.1) databases, each one consisting of ...
1
vote
0answers
68 views

All map services display pink tiles

I have implemented mapserver in Ubuntu 14.04 with postgresql 9.3, postgis and imposm using GitHub tutorial. After completing the tutorial all map services display pink tiles not map info. i was not ...
1
vote
0answers
39 views

Does qgis support postgresql range types?

I added a postgis layer with date range column in Qgis but that field is not listed in Qgis.
9
votes
1answer
211 views

Can PostGIS and QGIS provide dependable multi-user editing?

After considering a few options, I'm trying to give my 15-20 QGIS 2.2 users the ability to concurrently view/edit one or two basic point PostGIS layers, largest one has just 16,000 records. I've ...
1
vote
1answer
52 views

problem in pgRouting with data from google earth

Hello i am new in forum an in Postgesql,postgis and pgRouting. I try to make a pgrouting for my city roads. I use googlemaps to make a lines with coordinates of the roads and export the results in ...
0
votes
1answer
34 views

Geoserver to PostGres database using a hostname

I am trying to connect GeoServer to a PostGres Database with PostGIS extensions installed, but I need to use the host name becauuse the IP address may change. I am running geoserver and postgis in ...
3
votes
2answers
21 views

Inside/Outside Local Jurisdictions

Does anyone know of a software or service that can define whether a location is inside or outside of city and county jurisdictions? Our company is getting hit with huge tax audits because we did not ...
1
vote
1answer
41 views

Configuring SFCGAL to PostGIS Db

I was using PostgreSQL with PostGIS and Pgrouting. Recently I needed to install SFCGAL for some extra functions for my PostGIS db. After installing SFCGAL, now I don't know how to update my PostGIS db ...
2
votes
2answers
49 views

Did I set up Tiger Geocoder incorrectly?

I set up Tiger Geocoder in PostGIS on my local box (PostGIS 2.1.3, PostgreSQL 9.3.5, Tiger 2013 data). The problem I'm running into is that on almost every street most of the points are clustered, ...
0
votes
0answers
41 views

R PostGIS convert SpatialPolygon to PostGIS table

I've been having some success in scraping some webdata and converting it from HTML to spatial data as originally asked here: Parse PHP/HTML to shapefile or similar I've been using R to both fetch the ...
1
vote
0answers
54 views

How to count the number of coordinates within x meters grouping by distinct ids?

I have a table "items" of about 1 million rows and 40.000 distinct ids like the following: idx | id | point | lat | lon | the_geom 1 | 1 | 76 | 51.463388 | -0.16869856 | 0101000020E... 2 | 1 | 53 | ...
2
votes
1answer
36 views

Error in installing PostGIS 1.5?

I am installing PostGIS 1.5. After giving the command ./configure, it is showing that: pQserverversion in -lpq not found. configure: error: could not find libpq. What does it mean? I am ...
1
vote
1answer
40 views

PostGIS - How to do ST_UNION on each feature of a geojson FeatureCollection

I have a simple geoJSON featureCollection composed of 2 features: featureCollection = {u'type': u'FeatureCollection', u'features': [{u'geometry': {u'type': `u'MultiPolygon', u'coordinates': ...
1
vote
1answer
36 views

Error while installing PostGIS 1.5

After giving the command ./configure, it is showing that: pQserverversion in -lpq not found. configure: error: could not find libpq. What does it mean? I am using Red hat Linux (32 bit) version ...
2
votes
2answers
133 views

PHP examples to replicate FeatureServer capabilities

I used FeatureServer before and I liked it. The only thing I didn't like, though, is that it needs some other dependencies to work. That's why I want to try PHP instead. I know that there are already ...
1
vote
1answer
70 views

Display data from geoserver on click map with openlayers

I tried to display data with popup from Geoserver or Postgres to my map, but it dosen't work at all. Can anyone please help me? I used this code: function Info(e) { if ...
1
vote
1answer
104 views

Get a single cluster from cloud of points with specified maximum diameter in postgis

I have on the order of 2M Geometry Collections with N (median: 2, stddev: 6.6, 75th: 6, 95th: 21) Point objects (repeated points allowed and important) in a PostGIS table. I want to identify clusters ...
2
votes
0answers
103 views

Unable to edit PostgreSQL/PostGIS layers in ArcMap 10.2.2

I am connected to the database, have added a layer, started edit session, but I am unable to edit the attributeeo table of said layer. ArcMap tells me that it is not an editable layer. When ...
1
vote
1answer
32 views

Display data from postgresql on click map [duplicate]

I work with openlayers and geoserver. I'm searching for code that when I click on a point of a layer on the map, a popup window appears that contains information from the database (postgres) for this ...
1
vote
1answer
84 views

How to install postgis extension using an existent version on postgresql on OSX 10.9.4

I'm trying to install postgis using my existent version of postgresql. I tried doing: brew install postgis. But I'm getting the following error trying run create extension postgis; query ...
1
vote
1answer
45 views

What date was a table loaded into PostGIS

Is it possible to find out the date a table was loaded into a PostGIS schema using PgAdmin3? The tables are usually supplied from varying external sources.
1
vote
0answers
43 views

Limited number of entities exported with ogr2ogr?

I generate shapefiles with a php script that launches ogr2ogr commands. The ogr2ogr commands look like : "C:\OSGeo4W64\bin\ogr2ogr.exe" --config PGCLIENTENCODING LATIN1 -overwrite -f "ESRI Shapefile" ...
1
vote
1answer
46 views

Copy tables from one server to another in PostgreSQL

I am trying to copy a number of tables from one server to another using PostgreSQL as part of reorganising our data structure. I am pretty new to PostgreSQL so haven't much experience with it. Is ...
2
votes
1answer
46 views

Polygon from line creation problem

I have a problem transforming a linestring into a polygon. The error is: ERROR: lwpoly_from_lwlines: shell must be closed So I checked but firstpoint and endpoint are the same. I tried to use ...
4
votes
1answer
127 views

Connection property set error on registering PostgreSQL geodatabase with ArcGIS for Server?

We're in the middle of a migrating process. We've imported a geodatabase on a new Linux machine and we're trying to publish some map services to this new ArcGIS Server (that resides on the same ...
0
votes
1answer
64 views

Calculate shortest path between each lat/lon point in one table and each lan/lon point in another in Postgresql

I have two tables, both of them have only 2 columns. The first one contain only latitude and longitude coordinates of my source points and the other one only latitude and longitude coordinates of my ...
1
vote
0answers
45 views

How to load style from postgresql?

Is there any way to load a postgresql style for a vector layer using python? There is a function: loadNamedStyleFromDb (const QString &db, const QString &theURI, QString &qml).Does it ...
1
vote
1answer
41 views

PostGIS - ST_Difference query returns a dissolved result

I am using the ST_Difference to erase multipolygon feature by a mask. However, the query returns a dssolved multipolygon. The query is the following: '''SELECT ST_AsGeoJSON(ST_Collect(geom))::json ...
1
vote
0answers
35 views

Pgrouting, pgr_dijkstra function error

I'm starting to use the Pgrouting function on my database Postgresl. I have the table of links (id, source, target, cost) which contains the set of edges of my graph. I want to calculate the shortest ...
2
votes
1answer
100 views

Installed PostGIS extension not listed for database

I have a PostgreSQL database with the PostGIS extension enabled. I know that this extension is enabled, since I am using PostGIS functions, and I can actually see the PostGIS functions. However, ...
2
votes
1answer
47 views

Find nearest distinct features to a point

I am trying to select a single distinct features closest to an XY point in PostGIS. So I can find a single record for each distinct code by using: Select Distinct ON (code) * FROM table; Which ...
2
votes
0answers
35 views

Performance issues Tilemill with PostgreSQL and large datasets

I have a Tilemill project the size of europe. I developed my style-sheet by using a smaller dataset (size auf Austria) and everything was perfect. But now I did apply the same styles to my big europe ...
1
vote
1answer
46 views

Postgres Performance with Radius Searches

Im porting an application from mysql to postgres, and have several tables with 500k+ rows in each of geo points (lat, lon). In mysql i used a bounding box query with haversine to select rows within a ...
0
votes
3answers
107 views

What Open Source Packages are available to provide routing

I am looking for ways to validate mileage charged by our contractors. They are paid from a central location to a customer, and then from the customer to a drop off location. I use QGIS for a bunch ...
0
votes
0answers
36 views

insert row into postgis query table in QGIS

I find I am using QGIS (2.4) more and more as a client for PostGIS database tables with geometry, but also for tables without geometry, partly because it's good just to use the one application and ...
1
vote
1answer
31 views

Minimum Information to be kept on importing OSM data to use it for creating random start and ent points

I want to only import the minimum of data from OpenStreetMap, to be able to distribute random start and end points for a simulation in administrative areas in germany. I found this file ...
1
vote
2answers
73 views

Split lines into non-overlapping subsets based on points

Given a table with line geometry, and one or more points that are snapped to this line in a separate table, I would like to split each line with one or more intersecting points at each of the ...
2
votes
1answer
63 views

Python script fails on stand alone but works in ArcMap as a toolbox

I have a fresh install of ArcGIS Server and ArcGIS for Desktop both 10.2, latest patches applied. The data is served in this application from a PostgresSQL enterprise geodatabase. The problem is that ...
1
vote
3answers
205 views

postgresql export database with command or pgAdmin III

I want to export my postgresql db with pgadmin. I search all of its GUI, I also searched the web and I don't find some sueful information. I know how to import the db into postgresql: create a db with ...
2
votes
1answer
121 views

SQL query to have a complete geojson feature from PostGIS

I would like to get a geojson feature with properties from PostGIS. I have found an example to have a feature collection but I can't make it works for just a feature. so far I tryed to modify the ...
1
vote
1answer
52 views

where styles from QGIS are saved in PostgreSQl

I can save style of a layer in DB PostgreSQL. But where it is stored in Postgres? How can I found It?