https://videos.pcorp.us/videos/watch/cb5ee96f-e5c7-44c0-9885-69808af1c1f7 Regina Obe from Paragon Corporation presents at PostGIS Day 2021. PostGIS packages six different extensions and there are many others that further extend PostGIS like pgrouting, mobilitydb and ogr_fdw. Regina shows off the postgis_topology tool and she has a nice overview of a sql with geometric output in the form of letters. Slides HTML: https://postgis.us/presentations/PostGISDay2021_PostGISExtensions.html Slides PDF: https://postgis.us/presentations/PostGISDay2021_PostGISExtensions.pdf Code: https://postgis.us/presentations/postgis_day_2021.sql Screen reader support enabled. Fri, 19 Jun 2026 10:19:06 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://videos.pcorp.us https://videos.pcorp.us/lazy-static/avatars/64c595ea-1d55-4dd3-9a83-1e4cad2a1982.jpg https://videos.pcorp.us/videos/watch/cb5ee96f-e5c7-44c0-9885-69808af1c1f7 All rights reserved, unless otherwise specified in the terms specified at https://videos.pcorp.us/about and potential licenses granted by each content's rightholder.