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Données Québec

Gouvernement du Québec — Ministère des Ressources naturelles et des Forêts · Open & public data

Québec's shared open-data portal where provincial ministries and municipalities publish datasets under a Creative Commons Attribution licence

CC-BY-4.0FreeNov 2, 2026

PostGIS

PostGIS Project Steering Committee (OSGeo) · GIS & mapping

In-depth entry

Spatial extension for PostgreSQL adding geometry, geography and raster types with indexing and hundreds of SQL functions

GPL-2.0-or-laterOpen sourceFreeSelf-hostedNov 2, 2026

PostgreSQL

PostgreSQL Global Development Group · Relational databases

In-depth entry

Open-source object-relational database server with a large extension ecosystem (PostGIS, pgvector, TimescaleDB) and broad SQL coverage

PostgreSQLOpen sourceFreeLocalSelf-hostedBroken

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