osm2pgsql is a tool for loading OpenStreetMap data into a PostgreSQL / PostGIS database suitable for applications like rendering into a map, geocoding with Nominatim, or general analysis.
- Converts OSM files to a PostgreSQL DB
- Conversion of tags to columns is configurable in the style file
- Able to read .gz, .bz2, .pbf and .o5m files directly
- Can apply diffs to keep the database up to date
- Support the choice of output projection
- Configurable table names
- Gazetteer back-end for Nominatim
- Support for hstore field type to store the complete set of tags in one database field if desired
The latest source code is available in the OSM git repository on github and can be downloaded as follows:
$ git clone git://github.com/openstreetmap/osm2pgsql.git
Osm2pgsql uses the cross-platform CMake build system to configure and build itself and requires
Required libraries are
- Boost libraries, including system and filesystem
- PostgreSQL client libraries
- Lua (Optional, used for Lua tag transforms)
Make sure you have installed the development packages for the libraries mentioned in the requirements section and a C++ compiler which supports C++11. Both GCC 4.8 and Clang 3.4 meet this requirement.
First install the dependencies.
On a Debian or Ubuntu system, this can be done with:
sudo apt-get install make cmake g++ libboost-dev libboost-system-dev \ libboost-filesystem-dev libexpat1-dev zlib1g-dev \ libbz2-dev libpq-dev libgeos-dev libgeos++-dev libproj-dev lua5.2 \ liblua5.2-dev
On a Fedora system, use
sudo yum install cmake gcc-c++ boost-devel expat-devel zlib-devel bzip2-devel \ postgresql-devel geos-devel proj-devel proj-epsg lua-devel
On RedHat / CentOS first run
sudo yum install epel-release then install
dependencies like on Fedora.
On a FreeBSD system, use
pkg install devel/cmake devel/boost-libs textproc/expat2 \ databases/postgresql94-client graphics/geos graphics/proj lang/lua52
Once dependencies are installed, use CMake to build the Makefiles in a separate folder
mkdir build && cd build cmake ..
If some installed dependencies are not found by CMake, more options may need
to be set. Typically, setting
CMAKE_PREFIX_PATH to a list of appropriate
paths is sufficient.
When the Makefiles have been successfully built, compile with
The compiled files can be installed with
sudo make install
By default, the Release build with debug info is created and no tests are compiled. You can change that behavior by using additional options like following:
cmake .. -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Debug -DBUILD_TESTS=ON
Osm2pgsql has one program, the executable itself, which has 43 command line options.
Before loading into a database, the database must be created and the PostGIS and optional hstore extensions must be loaded. A full guide to PostgreSQL setup is beyond the scope of this readme, but with reasonably recent versions of PostgreSQL and PostGIS this can be done with
createdb gis psql -d gis -c 'CREATE EXTENSION postgis; CREATE EXTENSION hstore;'
A basic invocation to load the data into the database
gis for rendering would be
osm2pgsql --create --database gis data.osm.pbf
This will load the data from
data.osm.pbf into the
When importing a large amount of data such as the complete planet, a typical command line would be
osm2pgsql -c -d gis --slim -C <cache size> \ --flat-nodes <flat nodes> planet-latest.osm.pbf
<cache size>is about 75% of memory in MiB, to a maximum of about 30000. Additional RAM will not be used.
<flat nodes>is a location where a 24GiB file can be saved.
The databases from either of these commands can be used immediately by Mapnik for rendering maps with standard tools like renderd/mod_tile, TileMill, Nik4, among others. It can also be used for spatial analysis or shapefile exports.
In addition to the standard pgsql backend designed for rendering there is also the gazetteer database for geocoding, principally with Nominatim, and the null backend for testing. For flexibility a new multi backend is also available which allows the configuration of custom PostgreSQL tables instead of those provided in the pgsql backend.
We welcome contributions to osm2pgsql. If you would like to report an issue, please use the issue tracker on GitHub.
More information can be found in CONTRIBUTING.md.
General queries can be sent to the tile-serving@ or dev@ mailing lists.