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Re: bindings07

From: Gregory Williams <greg@evilfunhouse.com>
Date: Sun, 22 May 2011 14:52:50 -0400
Cc: SPARQL Working Group <public-rdf-dawg@w3.org>
Message-Id: <B072954C-D8A9-40B5-91E9-67C574FA971F@evilfunhouse.com>
To: Andy Seaborne <andy.seaborne@epimorphics.com>
On May 22, 2011, at 6:14 AM, Andy Seaborne wrote:

> Rob Vesse has found a problem with the bindings test suite.  The results for bindings07 are wrong.  There was an optimizer bug in ARQ: and the tests didn't get run with the simple engine [*].
> 
> 	Andy
> 
> [*] Run arq.qtest with  "--engine=ref" to run the simple, not optimization, no smarts query execution engine.  Does not scale - very simply executes each algebra operation and materialises all intermediate results.

Good catch! It seems my implementation has a bug too (in the join ordering of the BINDINGS clause with the rest of the query).

.greg
Received on Sunday, 22 May 2011 18:53:17 GMT

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