GIS coaching for territorial management.
Spatial databases can contain millions of geographic objects. In some cases, a PostGIS query may take several seconds — or even several minutes — to execute. This problem often occurs when: In this article, we will…
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When working with PostGIS, understanding spatial relationships between geometries is essential for building efficient queries. Two of the most widely used functions—ST_Intersects and ST_Within—are often confused, yet they serve different purposes. In this guide, you’ll learn…
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New version: PostGIS 3.6.0 (Released September 2, 2025) PostGIS 3.6.0 has been available since September 2, 2025. It is designed to work with PostgreSQL 12 through 18 beta 3, requires GEOS 3.8+ (with optimizations for GEOS…
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This subject comprises two articles. The first deals with importing ENC S57 files into a Postgresql/postgis database. The second deals with setting up an automatic symbology equivalent to nautical charts. You can download all the scripts…
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