PostGIS

Spatial and Geographic objects for PostgreSQL

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About PostGIS

PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geographic objects allowing location queries to be run in SQL.

SELECT superhero.name
FROM city, superhero
WHERE ST_Contains(city.geom, superhero.geom)
AND city.name = 'Gotham';

In addition to basic location awareness, PostGIS offers many features rarely found in other competing spatial databases such as Oracle Locator/Spatial and SQL Server. Refer to PostGIS Feature List for more details.

Should you upgrade now?

Not sure if you are running the best possible PostGIS for your PostgreSQL? Refer to our Version compatibility and EOL Policy.

License

PostGIS is released under the GNU General Public License (GPLv2 or later). Refer to License FAQ for more information. PostGIS is developed by a group of contributors led by a Project Steering Committee.

News

What's happening right now

Blogs, Tweets and more…

Follow @postgis

PostGIS 3.0.0

The PostGIS development team is pleased to release PostGIS 3.0.0.

This release works with PostgreSQL 9.5-12 and GEOS >= 3.6.

If you are using postgis_sfcgal extension, you need to compile against SFCGAL 1.3.1 or higher.

Best served with PostgreSQL 12 , GEOS 3.8.0 and pgRouting 3.0.0-beta.

Read More…

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PostGIS 3.0.0rc2

The PostGIS development team is pleased to release PostGIS 3.0.0rc2. This will be the final RC before release.

This release works with PostgreSQL 9.5-12 and GEOS >= 3.6

Best served with PostgreSQL 12 , GEOS 3.8.0 and pgRouting 3.0.0-alpha.

Read More…

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PostGIS 3.0.0rc1

The PostGIS development team is pleased to release PostGIS 3.0.0rc1.

This release works with PostgreSQL 9.5-12 and GEOS >= 3.6

Best served with PostgreSQL 12 , GEOS 3.8.0rc2 and pgRouting 3.0.0-alpha.

Read More…

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PostGIS 3.0.0beta1

The PostGIS development team is pleased to release PostGIS 3.0.0beta1.

This release works with PostgreSQL 9.5-12RC1 and GEOS >= 3.6

Best served with PostgreSQL 12RC1 and GEOS 3.8.0beta1 both of which came out in the past couple of days.

Read More…

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More News…

Upcoming Events

Recent past events

Tips

Move PostGIS extension to a different schema

As of PostGIS 2.3, the postgis extension was changed to no longer allow relocation. All function calls within the extension are now schema qualified.

While this change fixed some issues with database restore, it created the issue of if you installed PostGIS in a schema other than the one you wanted to it is not intuitive how to move it to a different schema. Luckily there is a way to do this.

For this exercise, I will install PostGIS in the default schema and then demonstrate how to move it into another schema location.

You can run these steps using psql or pgAdmin or any other PostgreSQL tool you want.

Read More…

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More Tips…

Case Studies

Howard Hughes Medical Institute

As a software engineer at the Howard Hughes Medical Institute, I work on a collaborative neuron reconstruction and analysis software called CATMAID 1 (screenshot: 3), which is used for neuroscience research. We use PostGIS to represent neurons in a 3D space.

Read More…

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Vanguard Appraisals

Vanguard Appraisals is new to the GIS world. In fact, we aren’t really in the GIS world; we just kind of brush up against it. We do mass property appraisal for entire county and city jurisdictions, and we develop software to collect, price and maintain values. We also host assessment data online so that homeowners can search and find property information much simpler from the comfort of their own home. Our software and websites are used in 7 states (IA, IL, MN, MO, NE, ND, SD).

Read More…

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More Case Studies…