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Frequently Asked Questions About PostGIS

Looking for a strong, solid, and scalable tool for storing and analyzing data? PostGIS is an amazing option that can do that and more, it’s an extension, open source, for PostgreSQL, adding extra support for spatial data and its different types, for spatial indexes, and functions. This and many other advantages make it a must-try option for anyone working with spatial data. Today, I’m going to talk about frequently asked questions about PostGIS.

By installing and using PostGIS (https://mappitall.com/blog/how-to-install-postgis) you will be able to store, analyze and manage data in a sturdy, high-performance, and scalable database. There’s a high chance you have come across an application that has this extension implemented, it has been widely applied to mapping, routing, spatial analysis, and apps that make use of geocoding.

The uses and applications for an extension like this are wide, it doesn’t matter if you’re a programmer, data scientist, or developer knowing what is PostGIS capable of, or knowing the differences between geometry and geography (https://mappitall.com/blog/postgid-geometry-vs-geography) in spatial data can help you to achieve new progress.

What is PostGIS?

PostGIS is a stunning addition to PostgreSQL, a system that’s open-sourced for managing relational databases. A way to let PostgreSQL manipulate and store spatial data, for example, different points, polygons, and lines.

Not only that, it also lets you use indexing and functions for quick spatial inquiries, let you use the intersection, calculate distances, and buffering.

Where is PostGIS Used?

The applications for PostGIS are wide, a good example is the use of GIS or geographical information systems like maps or position-based services. It’s a good way to allow users to do complicated analyses and check the data in a better way.

Also, it’s highly compatible with other GIS instruments like ArcGIS and QGIS. The extension also supports other data formats that are spatial, like GEOJSON and Simple Features.

In case you’re wondering, PostGIS is commonly used by a ton of enterprises and organizations. Ranging from commercial businesses and non-profits to government and entrepreneurs.

Is PostGIS Getting Updates?

Yes, PostGIS is getting constant updates, since it’s constantly evolving new versions of the extension are released from time to time to fix issues and bugs, add new features, and increase the performance.

In Nov 2022, one of the latest versions was released, the 3.3.2. This new version included support for standards like ISO and SQL-MM, got better 4D and 3D support, and upscaled the processing capabilities.

What are the 4 dimensions of PostGIS?

A huge draw about PostGIS is its support for dimensions, the extension supports up to (x, y, z, m)


Knowing PostGIS can come in handy in many scenarios, is a good addition to your knowledge base if you need a powerful tool with features tailored for spatial data.

Since PostGIS is a popular tool used in web map and place-based industries, it has a huge community, and a lot of documentation that helps you get deep in learning. Don’t hesitate and hit places like Reddit or Stack Exchanges if you have any questions.