Merge BGPs are path flattening so later operations see combined BGPs. Project: http://git-wip-us.apache.org/repos/asf/jena/repo Commit: http://git-wip-us.apache.org/repos/asf/jena/commit/2472f6ae Tree: http://git-wip-us.apache.org/repos/asf/jena/tree/2472f6ae Diff: http://git-wip-us.apache.org/repos/asf/jena/diff/2472f6ae
Branch: refs/heads/master Commit: 2472f6ae85c41456de0fa53cc4cfa241f0c95569 Parents: 379ab1f Author: Andy Seaborne <[email protected]> Authored: Tue Sep 23 14:49:13 2014 +0100 Committer: Andy Seaborne <[email protected]> Committed: Tue Sep 23 14:49:13 2014 +0100 ---------------------------------------------------------------------- .../java/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.java | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/jena/blob/2472f6ae/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.java ---------------------------------------------------------------------- diff --git a/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.java b/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.java index af86148..9ac4e49 100644 --- a/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.java +++ b/jena-arq/src/main/java/com/hp/hpl/jena/sparql/algebra/optimize/Optimize.java @@ -155,8 +155,12 @@ public class Optimize implements Rewrite OpWalker.walk(op, new OpVisitorExprPrepare(context)) ; // Convert paths to triple patterns if possible. - if ( context.isTrueOrUndef(ARQ.optPathFlatten) ) + if ( context.isTrueOrUndef(ARQ.optPathFlatten) ) { op = apply("Path flattening", new TransformPathFlattern(), op) ; + // and merge adjacent BGPs (part 1) + if ( context.isTrueOrUndef(ARQ.optMergeBGPs) ) + op = apply("Merge BGPs", new TransformMergeBGPs(), op) ; + } // Expression constant folding if ( context.isTrueOrUndef(ARQ.optExprConstantFolding) )
