Andy Seaborne created JENA-1167:
-----------------------------------
Summary: VALUES gets pushed to front wrongly.
Key: JENA-1167
URL: https://issues.apache.org/jira/browse/JENA-1167
Project: Apache Jena
Issue Type: Bug
Components: ARQ
Affects Versions: Jena 3.0.1
Reporter: Andy Seaborne
{noformat}
Query: Q.rq
1 PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
2 PREFIX ex: <http://example.com/>
3 SELECT ?label {
4 {
5 FILTER (bound(?arg1))
6 }
7 ?arg1 rdfs:label ?label
8 }
9 VALUES ?arg1 { ex:a UNDEF }
Data: D.ttl
1 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
2 @prefix ex: <http://example.com/>.
3
4 ex:a rdfs:label "A".
5 ex:b rdfs:label "B".
Execute: qparse --print=op --print=opt --query Q.rq
(prefix ((rdfs: <http://www.w3.org/2000/01/rdf-schema#>)
(ex: <http://example.com/>))
(project (?label)
(join
(join
(filter (bound ?arg1)
(table unit))
(bgp (triple ?arg1 rdfs:label ?label)))
(table (vars ?arg1)
(row [?arg1 ex:a])
(row)
))))
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(prefix ((rdfs: <http://www.w3.org/2000/01/rdf-schema#>)
(ex: <http://example.com/>))
(project (?label)
(sequence
(table (vars ?arg1)
(row [?arg1 ex:a])
(row)
)
(sequence
(filter (bound ?arg1)
(table unit))
(bgp (triple ?arg1 rdfs:label ?label))))))
Execute: sparql --engine=ref --query Q.rq --data D.ttl
---------
| label |
=========
---------
Execute: sparql --query Q.rq --data D.ttl
---------
| label |
=========
| "A" |
---------
{noformat}
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