gis

Geographic Information Systems and mapping

Databases Fast PostGIS Polygon Clustering for Zoom Maps

Optimize large polygon datasets in PostGIS for zoom-based rendering. Use GiST/BRIN indexes, ST_ClusterKMeans, ST_ClusterWithin, vector tiles (MVT), geometry simplification for millisecond queries on 300k+ records.

#postgis
#clustering
#spatial-index
#vector-tiles
#gis

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12/29/2025, 10:42 AM