ARC2 create the same triple multiple times in the database, if it occurs multiple times in different INSERT INTO queries (or one time in different queries). Surprisingly, if you run a SPARQL select query, it returns only one instance, as expected.
Fix: Check database before creating new triples. Its not optimal (1 query per new triple), but it keeps the database valid.
ARC2 create the same triple multiple times in the database, if it occurs multiple times in different INSERT INTO queries (or one time in different queries). Surprisingly, if you run a SPARQL select query, it returns only one instance, as expected.
Fix: Check database before creating new triples. Its not optimal (1 query per new triple), but it keeps the database valid.