Andy Seaborne created JENA-2064:
-----------------------------------
Summary: path* with substituted subject may give wrong answers
Key: JENA-2064
URL: https://issues.apache.org/jira/browse/JENA-2064
Project: Apache Jena
Issue Type: Bug
Components: ARQ
Affects Versions: Jena 3.17.0
Reporter: Andy Seaborne
Assignee: Andy Seaborne
Example:
{noformat}
PREFIX : <http://example/>
SELECT * { BIND(:xxx AS ?s) ?s :ppp* ?o }
{noformat}
on an empty graph ({{:xxx}} is not in the data).
{noformat}
~ >> sparql 'PREFIX : <http://example/> SELECT * { BIND(:xxx AS ?s) ?s :ppp* ?o
}'
---------------
| s | o |
===============
| :xxx | :xxx |
---------------
{noformat}
but
{noformat}
~ >> sparql --engine=ref 'PREFIX : <http://example/> SELECT * { BIND(:xxx AS
?s) ?s :ppp* ?o }'
---------
| s | o |
=========
---------
{noformat}
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