Andy Seaborne created JENA-549:
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Summary: Subject variables in a text:query bound earlier in the
query cause exception in TDB.
Key: JENA-549
URL: https://issues.apache.org/jira/browse/JENA-549
Project: Apache Jena
Issue Type: Bug
Components: TDB, Text
Affects Versions: Jena 2.11.0
Reporter: Andy Seaborne
Assignee: Andy Seaborne
Example:
{noformat}
?s :p 123 .
?s text:query 'foo'
{noformat}
and {{text:query}} matches something, then an internal inconsistency is
detected by TDB. This error happens more generally - TDB happens to have
additional checking code and the order of creation of concrete terms is
different for TDB vs in-memory execution.
{noformat}
Exception in thread "main" com.hp.hpl.jena.sparql.ARQInternalErrorException:
Attempt to reassign '?item' from
'<http://www.riograndegames.com/games.html?id=181>' to
'<http://www.riograndegames.com/games.html?id=181>'
at
com.hp.hpl.jena.sparql.engine.binding.BindingHashMap.checkAdd(BindingHashMap.java:111)
at
com.hp.hpl.jena.sparql.engine.binding.BindingHashMap.add(BindingHashMap.java:92)
at
com.hp.hpl.jena.sparql.engine.binding.BindingFactory.materialize(BindingFactory.java:60)
at
com.hp.hpl.jena.tdb.solver.QueryEngineTDB$QueryIteratorMaterializeBinding.moveToNextBinding(QueryEngineTDB.java:139)
{noformat}
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