Todo

• add as default of default `""^^cube:Undefined``
• Replace with cube:Undefined in the case of sh:IRI somewhere in the pipelines
• Fix sh:in to represent the necessary structure as defined in the rdf-cube-schema.

Description

When trying to import the following CSV

id,string
1,Hier wird
2,Zeile 3 ganz einfach
3,
4,nicht importiert

with identifier template Observations/{id} the following behavior is observed

• Pipeline reports success
• Line 3 is skipped
• if column "string" has a default value doesn't matter

I suggest that at least

• replacing blanks with a default value should enable import of line 3
• Instead of the line being skipped an error should be thrown

Technically imo simply not creating an observation could be a sufficient behavior as long as the column isn't used in the identifier template - depending on the needs of IXT of course.