PostgreSQL is an open source object-relational database system.

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PostgreSQL query selection in MapServer is not working?

When I make a selection in the query in Mapserver I got a blank page. The query I use is: DATA "geom from (select * from bagmutlijst_201210.vo_gepland_gemeente where gemcode = '0141') as selection ...
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2answers
282 views

Is it possble to set a PostgreSQL schema and table name as a variable in Mapserver?

In Mapserver it is possible to set a variable when connecting to postGIS. This way I have created an fill-in form where you can enter a postcode and then you get a result. How can do this with ...
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0answers
57 views

How to format spreadsheet to input point data for later import to PostgreSQL

I want to create a spreadsheet to hold data from our cemetery. I will use the spreadsheet to get the data into a PostgreSQL database. What I dont know yet is the format that the point (positional) ...
3
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3answers
690 views

Geoserver, PostGIS and Postgres setup better on which web server?

Is it better to have Jetty or Apache as a Webserver for GIS stack?
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3answers
350 views

Why doesn't pgRouting return the best path?

Let the next portion of a graph: When I use the function shortest_path between the points A and B, I got the blue path. Why does this happen?
2
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1answer
569 views

Update query does not affect any rows, privileges are set to public and allow all actions

I've been trying to update a column of integers called level_dept in a table called adminboundaries within the sql query tool on pgadmin3 and the query runs and finishes with a lot of lag, but 0 rows ...
5
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2answers
197 views

How can I join a spreadsheet to a point layer?

I have a layer with point data for the grave positions in our cemetery. We are gathering data from each headstone. If I enter the data to a spreadsheet can I later associate the spreadsheet with the ...
4
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1answer
360 views

postgis create geom from lat long

I ran this query successfully, but the column highwayid isn't updated as expected: update unique_latlongs set highwayid = (SELECT h.osmid FROM rn.highways h WHERE h.geom && ...
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1answer
353 views

How do I set the protocolVersion using the jdbc postgres driver? [closed]

I attempted to concatenate a string to the url parameter of the below in order to set the protocolVersion, but I'm not sure how to keep the string in the url without altering the name of the database, ...
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3answers
404 views

how can i use the postgresql's Geometric Types

How can i implement Geometric Types in postgresql db.. Postgresql db is hosted in windows os.. and how can i get whether point is in circle or not? getting errors when i am using predefined ...
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2answers
2k views

slow import via osm2pgsql to postgresql database

I try to import berlin.osm (33Mb) into the postgres database 9.1 via osm2pgsql. My desktop is mem 2Gb,proc 2Ghz,hdd 60Gb, RHEL6u2x64. This process is so slowly in particular when I'm going over ...
7
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2answers
1k views

vehicle tracking system in postgresql performance

I am developing the vehicle tracking system using postgresql. When the data comes from device to my DB server, I am calling the following functions after inserting data into log table. Distance ...
10
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2answers
2k views

Postgres/Postgis spatial index - no speed up

I have a spatial table in a postgres/postgis database. Every row in it represents a Polygon. It is of following form: +----+--------+ |gid | way | +----+--------+ |241 | 01030..| The geometric ...
1
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1answer
510 views

Broken image from mapserver, png not rendering

I'm trying to render WMS MapServer data on top of Google Maps using the OpenLayers JS library. My problem arises when I try to render the data as a series of points throughout the New York City area. ...
0
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1answer
382 views

Column exists in DatabaseMetaData, but does not exist in relation?

I am using JDBC to query a PostgreSQL database. And I want to populate a column called wiki_url based on the value of another column, level which will determine which value of 5 columns to concatenate ...
2
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2answers
922 views

How to project a geoJSON file in OpenLayers?

I have a json file well formed. I want to read a json file as a base layer from OpenLayers. <script type="text/javascript"> var styles = new OpenLayers.StyleMap({ ...
3
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3answers
368 views

How to create feature dataset by pgAdmin(postgres) that can by use in sde conection?

How to create feature dateset in postgres(pgAdmin) that can by use in sde conection (arcgis)?
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1answer
226 views

Convert native box to geometry

I have an old table that contains bounding boxes of lat long coordinates in a "box" type. How do I convert them to PostGIS geometry ? I tried using ...
3
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1answer
1k views

Merging multipolygon data into a polygon

I have a MultiPolygon representation of some shapes in POSTGIS, I am trying to convert them to Polygon data. I tried, st_geometryn(r.geom, 1) but that didnt work because the way polygons are ...
0
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1answer
451 views

Eclipse can't find Driver.class from postgresql-9.2-1002.jdbc4.jar file nor AbstractJdbc4Connection class

I am using the jar file in my configuration path after following the example from postgresql/jdbc tutorial. But after I added the jar file and configured it for my reference library when I run it I am ...
2
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0answers
192 views

Projecting PostGIS in Openlayers

I have a layer(base layer) with MultiLineString Geometries and now I need to project the layers(overlays) in the base layer from PostGIS using OpenLayers. However, I got an idea how to project table ...
2
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1answer
276 views

How to filter or query data in GRASS?

I have a PostGIS dataset with just over 2 million rows. Each row has a PostGIS geometry point value and several attributes. I'd like to do some analysis on certain subsets of the data, but I can't ...
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2answers
3k views

PostGIS ERROR: could not load library “/usr/lib/postgresql91/lib64/postgis-2.0.so”

OS is openSUSE 12.1, PostgreSQL - 9.1, PostGIS - 2.0. Postgre/PostGIS are installed from Application:Geo repository. After recent updates when I try to connect to my database I get the following ...
6
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3answers
260 views

Are there any open source Python modules compatible with arcpy that will allow complex SQL queries?

I am trying to handle string (non-geometry) duplicates in a large attribute table of a shapefile without having to convert to gdb and back or connect to a postgres db. I need to be able to use a count ...
3
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1answer
677 views

How to manage the osmosis command line?

This refer to this post : Read Here I'm in trouble when using osmosis command line to export data from planet-latest.osm.bz2 directly to osm2pgsql using some criteria to select what to transfer. I ...
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0answers
471 views

How do I find the pgAdmin connection parameters?

I need to create a connection from arcmap to pgadmin using a python module because of an arcpy script, but I am unsure of how to get the pgadmin connection parameters. I think it may be some kind of ...
3
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1answer
180 views

Creating a vector based design from a raster database

I have a raster table that I've created using Postgis raster. It has 365 records and the table looks like this: +-----+------------+---------+------------+ | rid | rast |filename |date_of data| ...
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1answer
2k views

SRID 4326 and geometry conversion

From this line: SELECT ST_AsEWKT(geom) FROM buildings LIMIT 1; I get this result: "SRID=4326;MULTIPOLYGON(((404269.308014269 4543087.6184561,...)))" I'm wondering if the coordinations are ...
2
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1answer
3k views

How to fix incorrect SRID of the geometry column? [duplicate]

I've been told to use AddGeometryColumn to properly add a column with correct/preferred SRID. however I wonder if it's possible to fix/change the current column instead of adding a new? If there's no ...
1
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1answer
206 views

Why does Find_SRID return zero?

using SELECT Find_SRID('public', 'myTable', 'myColumn'); I get zero as the result, what does it mean? Regards,
1
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1answer
331 views

loading multiple shapefiles using shp2pgsql in a bash script

I have this bash script (loadShapefiles.sh) to load multiple shapefiles at a time. The script and the shapefiles are stored in the same directory. When I run the bash file with the command of bash ...
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0answers
157 views

Can I do full SQL expressions through the “WHERE” clause in UpdateCursor?

Run as a standalone python script for a shapefile in a toolbox on ArcMap. For example: psql_url_pop = '''SELECT shapefile.NAME_# + shapefile.WIKI_URL FROM public.shapefile''' rows = ...
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2answers
729 views

dealing with 2 different coordination systems in postGIS

I'm seeking a function that converts degrees to the following format: POINT(405115.926025391 4543389.4354248) I dont know this format's name, but is there any function to do so? Cheers, EDIT ...
2
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1answer
701 views

Getting points within a range from a postgres database?

ok so this is query i'm making which returns no result: SELECT building.gid FROM building WHERE ST_Dwithin(building.geom, ST_GeomFromText('POINT(long lat)',4326), 400) If I run this ...
2
votes
3answers
1k views

Spatial index to speed up the query

I have spatial table in PostgreSQL 9.2 / postgis 2.0 that I have to extract some information from it. But my query is hopelessly slow. How could I make use of spatial index to improve the performance ...
5
votes
4answers
2k views

What is the easiest way to detect geometry type from text in PostGIS?

I have some records with different types of 'geometries (poly,line,points)' stored as string. I'm trying to use ST_GeomFromText as I want to do some intersection with them. What is the easiest way to ...
0
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0answers
19 views

Is it possible to query for values in fields with the column names partially matching another field's values in psql?

I am trying to query the values of a series of columns NAME_# with the # matching the values of another column LEVEL and then populating another column with what I retrieve
5
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2answers
154 views

Confused about PostGIS and Postgres terminology

I am documentating my stuff and not sure what is the right way to write this, "I have installed Postgres and added the shapefile to the Postgres database. This database is then PostGIS enabled" or ...
3
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2answers
6k views

How to install PostgreSQL 9.2 with PostGIS 2.0 on Ubuntu 11.10 (or higher)?

I have read this question: Install PostGIS v2 for PostgreSQL v9.2, but it didn't resolve my problem. I added the PostgreSQL backports PPA and installed the postgresql-9.2 package, but there is no ...
2
votes
1answer
162 views

Why is pgrouting astar not consistent?

I route from 1 end of a circular route to the opposite end. Visually it is obvious that going clockwise is shorter, however shortest_path_astar sometimes picks clockwise and sometimes anti-clockwise. ...
2
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0answers
11 views

updatation query along a point [duplicate]

Possible Duplicate: GIS QUERY on point and buffer All, I have a PostGIS/Postgresql DB that has one table in it. One with point geometries and the other that represents buffer as polygons. ...
2
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1answer
931 views

How can I fix QGIS PostGIS Manager error 'shp2pgsql' is not recognized?

I have QGIS 1.8.0 installed via OSGeo Installer and work on win 7. All I need is to upload the shapefile to the database via this plugin. Unfortunately I am receiving an error: Something's wrong: ...
4
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3answers
104 views

GIS QUERY on point and buffer

I have a point table and the buffer geometry is created around the point. I have defined the if the point is within the buffer_distance then its value is =1 and if it is outside the buffer its value ...
2
votes
1answer
264 views

How to extract a single road from OSM GIS Database?

Is there a way to extract a single row out of the OSM-GIS-Database (by a Query)? It would be so much easier if I could find an EER Model of the Database. I was searching a long term and found very ...
2
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1answer
186 views

How to create infrastructure coverage using pgRouting?

I'm trying to reproduce what Underdark did here. I succesfully installed pgrouting and the two required function (nearest neighbour and driving_distance). cdv_osm_v contains all the openstreetmap ...
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1answer
157 views

Intersecting 3 tables with Spatial SQL

I have three tables I need to intersect but not sure how to get the third Heres what I have so far: SELECT nyc_neighborhoods.name, SUM(nyc_census_blocks.popn_total) AS POP FROM nyc_neighborhoods JOIN ...
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3answers
490 views

how to parse a XML Document file associated with the shapefile into a PostGIS/PostgreSQL table

I have a shapefile, and information on its attributes is stored in a XML Document format. For example, the attribute of COUNTY is stored as follows: -<attr> ...
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2answers
2k views

How to find nearest line from point using PostGIS?

I have a table of Roads in PostGIS which geometry is "geometry(MultiLineString,4326)". Its attribute are gid osm_id name ref type oneway bridge maxspeed geom Now i want to know ...
2
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1answer
172 views

How to link pgrouting edges with street names to route user based in street names?

I have installed postgreSql + postGis + pgrouting and I have loaded OSM data into my database using osm2po and shp2pgsql. How can I search for points in the map using the street names and then route ...
4
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1answer
373 views

Is there a way to select what to import from planet-latest.osm.bz2 to database?

Is there a way to select what to import from planet-latest.osm.bz2 to database? I want to do something like : osm2pgsql ... --place='city' --admin_level='2' My goal is to use only cities and ...