How can I clear the current triples in qEndpoint and replace with the new ones?

[bohuizhang]

I am using the qEndpoint for loading and querying local knowledge graphs. Could you advise on how to clear the currently loaded/indexed triples and replace them with new ones? I attempted to use the 'DELETE' command, but the newly loaded triples are not being returned in queries.

[ate47]

Weirdly CLEAR ALL doesn't work, I'll have to look at it. This one works:

DELETE WHERE { ?s ?p ?o }

But qEndpoint is more in the spirit, we index/load a big dataset (HDT) and then we add/remove parts from it. If you want to fully erase the dataset, you can stop the endpoint, delete the hdt-store and native-store directories in your qEndpoint installation and restart it.

[bohuizhang]

The DELETE command doesn't seem to be working properly. After executing the DELETE command and loading new data, the newly loaded triples are not queryable, even after restarting the endpoint. While the alternative approach (deleting the hdt-store and native-store directories) works!

[ate47]

I noticed that in #490, for now if you want to load another dataset you need to do what I said with deleting the previous dataset.