rdflib

assert error during sparql query

Bug #151280 reported by Gunnar Aastrand Grimnes
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rdflib
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Bug Description

I get the following exception when executing a SPARQL query:

[...]
File "build/bdist.linux-i686/egg/rdflib/Graph.py", line 679, in query
  File "build/bdist.linux-i686/egg/rdflib/sparql/bison/Processor.py", line 39, in query
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 240, in TopEvaluate
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 534, in evaluate
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 499, in _ExpandLeftJoin
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 499, in _ExpandLeftJoin
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 499, in _ExpandLeftJoin
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 499, in _ExpandLeftJoin
  File "build/bdist.linux-i686/egg/rdflib/sparql/Algebra.py", line 491, in _ExpandLeftJoin
AssertionError: <SPARQLNode 137854252. 2 children, 0 OPTs. clash: False. bound: [u'?label', u'?type', u'?uri', u'?createdate', u'?classlabel']>

This happens with the SVN version as of today.

Download a test program from here: http://www.dfki.uni-kl.de/~grimnes/2007/10/rdflibSparqlBug/test.py

(why can't I attach a file?)

Revision history for this message
Gunnar Aastrand Grimnes (gromgull) wrote :

aha - here I could have attached it. oh well.

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