Logical target with DCAT vocabulary uses non-existing property dcat:dataDump

[frmichel]

The target implementation can use either VoID or DCAT. With DCAT it expect a dcat:dataDump property that does not exist in DCAT .
It is exemplified in https://github.com/RMLio/rmlmapper-java/blob/master/src/test/resources/web-of-things/logical-target/local-file/dcat/mapping.ttl.

Note: I tested this with the latest image on Docker which is 8.0.1 I guess, although "latest" has no other version tag.

It might be a mismatch with the VoID target implementation that uses void:dataDump.

With DCAT, I would suggest to use a dcat:Distribution with property dcat:accessURL.

[frmichel]

Additional: I just saw that https://rml.io/specs/dataio/ has an example with a dcat:Distribution / dcat:accessURL. So are both supported?

<#DCATDump> a rmlt:LogicalTarget;
     rmlt:target [ a dcat:Dataset;
         dcat:distribution [ a dcat:Distribution;
            dcat:accessURL <http://example.org/dcat-access-url>;
         ];
     ];
     rmlt:serialization formats:N-Quads;
     rmlt:compression comp:zip.