[Bug?] SPARQL queries different results depending on the Ontologies loading order

[charbe...@gmail.com]

Hi,

I am having a strange SPARQL query behavior which seems dependent on the order to ontology loading and imports

Here is my ontologies: (A, B, C, D) and their import relations
A
B directly imports A
C directly imports B
D directly imports C

My queries mixes instances from D, C, B and A and requires sameAs reasoning set to ON.

I am having different results depending on the order I loaded my ontologies in StarDog.

If I load D then C then B then A ==> My queries are correct !!

However, if I load A then B then C then D, here my queries are not correct and some answers are missing !!

This can be a serious issue, suppose we want to add an ontology E which directly imports D.
This means we cannot just import E in the database. We need to delete the DB and import E, then D then C then B then A.

Thank you for your help.

Best,
Charbel

[Kendall Clark]

Charbel,

Can you provide us with data and query sufficient to reproduce this?

Are yr queries using property paths?

Cheers,

Kendall Clark

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[charbe...@gmail.com]

Kendall,

I sent you the ontologies by email.

I am not using property paths queries.

Cheers,
Charbel.