Ticket #77 (new defect)

Opened 3 years ago

Problematic result using Aggregates

Reported by: mple Owned by: mple
Priority: minor Milestone: LEO Y1 review
Component: evaluation Version:
Keywords: Cc:

Description

When executing the following query

SELECT ?a (sum(?n) as ?s)
WHERE {
?a ?b ?n .
}
GROUP BY ?a

against an empty endpoint , the expected result is the empty set, but Strabon returns one row with ?s having the value "0". The same result is produced if we add more constraints in WHERE so the result set has zero number of groups.

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