Andy Seaborne created JENA-2150:
-----------------------------------
Summary: Graph name wrongly in-scope in {{BIND}} expression.
Key: JENA-2150
URL: https://issues.apache.org/jira/browse/JENA-2150
Project: Apache Jena
Issue Type: Bug
Components: ARQ
Affects Versions: Jena 4.1.0
Environment: If
{noformat}
SELECT * WHERE
{ GRAPH ?g
{ ?s ?p ?o
BIND(str(?g) AS ?g1)
}
}
{noformat}
algebra:
{noformat}
(graph ?g
(extend ((?g1 (str ?g)))
(bgp (triple ?s ?p ?o))))
{noformat}
generates quad form:
{noformat}
(extend ((?g1 (str ?g)))
(quadpattern (quad ?g ?s ?p ?o)))
{noformat}
Note quadpattern sets {{?g}}.
but if a FILTER is present, a correct expression is generated:
{noformat}
SELECT * WHERE
{ GRAPH ?g
{ ?s ?p ?o
FILTER ( ?g != 123 )
BIND(?g AS ?g1)
}
}
{noformat}
algebra:
{noformat}
(graph ?g
(filter (!= ?g 123)
(extend ((?g1 (str ?g)))
(bgp (triple ?s ?p ?o)))))
{noformat}
generates quad form:
{noformat}
(assign ((?g ?*g0))
(filter (!= ?g 123)
(extend ((?g1 (str ?g)))
(quadpattern (quad ?*g0 ?s ?p ?o)))))
{noformat}
Delayed setting of {{?g}}.
The problem is in {{OpVars.OpVarsMentioned}} not processing BIND expressions.
Reporter: Andy Seaborne
Assignee: Andy Seaborne
Fix For: Jena 4.2.0
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