Author: andy
Date: Mon Apr 15 16:08:29 2013
New Revision: 1468137
URL: http://svn.apache.org/r1468137
Log:
Unit table is safe to rewrite
Modified:
jena/trunk/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/TransformFilterEquality.java
Modified:
jena/trunk/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/TransformFilterEquality.java
URL:
http://svn.apache.org/viewvc/jena/trunk/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/TransformFilterEquality.java?rev=1468137&r1=1468136&r2=1468137&view=diff
==============================================================================
---
jena/trunk/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/TransformFilterEquality.java
(original)
+++
jena/trunk/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/TransformFilterEquality.java
Mon Apr 15 16:08:29 2013
@@ -264,6 +264,13 @@ public class TransformFilterEquality ext
return safeToTransform(varsEquality, varExprList) &&
safeToTransform(varsEquality, opGroup.getSubOp()) ;
}
+
+ if ( op instanceof OpTable )
+ {
+ OpTable opTable = (OpTable)op ;
+ if ( opTable.isJoinIdentity() )
+ return true ;
+ }
// Op1 - OpGroup
// Op1 - OpOrder
