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I have an ArcGIS 10.5.1 enterprise geodatabase hosted on PostgreSQL 9.4 (non-PostGIS enabled, but with SDE.ST_Geometry support). I'd like to add some feature classes as layers in QGIS. How can I do this?

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    This question is a bit confusing. "Geodatabase" is a term that refers to a database where an Esri geometry datatype has been added (or an RDS node with PostGIS enabled, where the Esri SDE tables have been populated). Do you have SDE.ST_Geometry enabled in this database? Not enabling PostGIS removes one of the most popular geometry column solutions from your options (and QGIS support, too, I think). – Vince Dec 12 '18 at 18:21
  • It's an Enterprise geodatabase. Yes, I've copied the st_geometry library to the postgres server and it should be sde.st_geometry enabled – ErieCoGis Dec 12 '18 at 21:16
  • I think you may be right, it looks like QGIS may only support connecting to PostGIS enabled Postgres databases. – ErieCoGis Dec 12 '18 at 21:27
  • Please edit the question to include the exact version of PostgreSQL and the exact version of ArcGIS geodatabase. – Vince Dec 12 '18 at 21:57
  • I've updated the question to include the version numbers of Postgres and the ArcGIS geodatabase – ErieCoGis Dec 12 '18 at 22:05
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It's not possible - you need to use real PostGIS geometries instead.

  • It looks like I can only use the PostGIS template when initially running the Create Enterprise Geodatabase tool. So I'm thinking, I could create a new db, and copy my feature classes over to the new, PostGIS enabled Enterprise geodatabase. Or is there an easier way to do this? – ErieCoGis Dec 13 '18 at 22:30
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In QGIS open the Data Source Manager, click PostgreSQL on the left, add a new connection, fill out the database connection details:

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Once that's added click Connect. Once you're all connected up you can add any layers you want.

  • If it isn't PostGIS enabled I think you should click on "Also list tables with no geometry", otherwise you may not see any layer in de DB. – guillermo_dangelo Dec 12 '18 at 19:57
  • Thank you for the clear directions. I put in my connection info for my database and clicked "test connection" and it succeeds. When I add the connection and click Connect however, it says "Retrieving tables of <database name>..." and I cannot add layers successfully to the canvas – ErieCoGis Dec 12 '18 at 21:25
  • I also tried checking the option "Also list tables with no geometry" – ErieCoGis Dec 12 '18 at 21:26

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