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It is not possible to see in QGIS 3.4 data in WFS service from PostGIS view, it is only possible to see data in services created from tables. Is it not possible to create services from SQL views? enter image description here

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How Geoserver fetches the data that is served should not be a concern to the consumer (Qgis).

If you put the URL that Qgis is displaying in a web browser, it has a more meaningful error message:

Cannot do natural order without a primary key, please add it or specify a manual sort over existing attributes

If you edit the WFS connection property in Qgis, use the URL https://geo.gporellana.gob.ec/geoinfo/datoslibres/wfs?VERSION=2.0.0 and uncheck the box enable feature paging then you will be able to display the layer edificio_GADPO

enter image description here

To fix the issue, the Geoserver admin would have to declare a primary key / unique key for the corresponding layer. This thread and post are worth reading.

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  • I am review my layer config in geoserver to fix this Commented Nov 29, 2019 at 13:29

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