Hello!
I noticed the following weird behavior on the public DBpedia endpoint:
"""
select ?uri ?subject
where {
FILTER (str(?uri) = 'http://dbpedia.org/resource/London' || str(?uri)
= 'http://dbpedia.org/resource/Family_(biology)')
?uri <http://purl.org/dc/terms/subject> ?subject
}
"""
hangs forever, while
"""
select ?uri ?subject
where {
FILTER (str(?uri) = 'http://dbpedia.org/resource/London')
?uri <http://purl.org/dc/terms/subject> ?subject
}
"""
is very quick.
Looking at the queries, the earlier seems of approximately the same
complexity as the latter?
Best,
y
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