BrightstarWeightedOptimiser now applied to SPARQL queries

This work is still incomplete though as testing shows that the optimizer isn't really doing a good job. This is primarily (I think) because we don't have enough stats. See issue #269
BrightstarDB · Jan 20, 2016 · 5103aa4 · 5103aa4
1 parent ff19f34
commit 5103aa4
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Showing 6 changed files with 446 additions and 16 deletions.
diff --git a/src/core/BrightstarDB/BrightstarDB.csproj b/src/core/BrightstarDB/BrightstarDB.csproj
@@ -209,7 +209,8 @@
     <Compile Include="Query\BrightstarRdfProvider.cs" />
     <Compile Include="Query\BrightstarVirtualAlgebraOptimiser.cs" />
     <Compile Include="Query\BrightstarVirtualNode.cs" />
-    <Compile Include="Query\BrightstarWeightedOptimiser.cs" />
+    <Compile Include="Query\Processor\BrightstarWeightedOptimiser.cs" />
+    <Compile Include="Query\Processor\BaseQueryOptimiser.cs" />
     <Compile Include="Query\Processor\JoinOptimiser.cs" />
     <Compile Include="Query\VirtualizingSparqlDataset.cs" />
     <Compile Include="RdfFormat.cs" />

diff --git a/src/core/BrightstarDB/Query/BrightstarQueryProcessor.cs b/src/core/BrightstarDB/Query/BrightstarQueryProcessor.cs
@@ -15,6 +15,7 @@ internal class BrightstarQueryProcessor : LeviathanQueryProcessor
 
         static BrightstarQueryProcessor()
         {
+            SparqlOptimiser.QueryOptimiser = new NoReorderOptimiser();
             SparqlOptimiser.AddOptimiser(new VariableEqualsOptimizer());
             SparqlOptimiser.AddOptimiser(new JoinOptimiser());
         }