Hi LeonardThanks for quick reaction. And for hint how to work around it.
I modified my query to specify the collection explicitly and as it can be run without open database, it returns proper results.
Thanks
And Merry Christmas to all of you. It is time to exchange our XML trees to Christmas one. And let queries to this tree brings proper results, you may enjoy.
Jan
2010/12/23 Leonard Wörteler
<leonard.woerteler@uni-konstanz.de>
Hi Jan,
Am 23.12.2010 16:56, schrieb Jan Vlčinský (CAD):
> I wonder, what I am doing wrong. Any advice?
that seems to be a bug. I lack the time to investigate this right now,
but here's a minimal example for others to test:
> (<foo key='a'/>)[@key = 'a']
When I do this without an open ducument, it runs fine, but with an open
collection, this happens:
> Compiling:
> - removing unknown tag/attribute "key"
> - pre-evaluating () = "a"
> - Filter expression: removing false()
> Result: ()
And finally, with an open one-document DB:
> Error: Possible bug? Your feedback is welcome:
> Contact: basex-talk@mailman.uni-konstanz.de
> Version: BaseX 6.3.5
> Java: Sun Microsystems Inc., 1.6.0_22
> OS: Windows Vista, amd64
> Stack Trace:
> java.lang.NullPointerException
> org.basex.query.QueryResources.docNodes(QueryResources.java:215)
> org.basex.query.QueryResources.data(QueryResources.java:192)
> org.basex.query.path.NameTest.comp(NameTest.java:61)
> org.basex.query.path.AxisStep.comp(AxisStep.java:81)
> org.basex.query.path.AxisPath.compPath(AxisPath.java:160)
> org.basex.query.path.Path.comp(Path.java:46)
> org.basex.query.expr.Arr.comp(Arr.java:35)
> org.basex.query.expr.CmpG.comp(CmpG.java:118)
> org.basex.query.expr.Preds.comp(Preds.java:47)
> org.basex.query.expr.Filter.comp(Filter.java:55)
> org.basex.query.QueryContext.compile(QueryContext.java:208)
> org.basex.query.QueryProcessor.compile(QueryProcessor.java:82)
> org.basex.core.cmd.AQuery.query(AQuery.java:75)
> org.basex.core.cmd.XQuery.run(XQuery.java:22)
> org.basex.core.Command.run(Command.java:292)
> org.basex.core.Command.exec(Command.java:274)
> org.basex.core.Command.execute(Command.java:67)
> org.basex.gui.GUI.exec(GUI.java:391)
> org.basex.gui.GUI$5.run(GUI.java:351)
I used the GUI from the current repository revision for testing.
Cheers Leo
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