Github user twilmes commented on a diff in the pull request:
https://github.com/apache/tinkerpop/pull/572#discussion_r106646659
--- Diff:
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/optimization/PathRetractionStrategy.java
---
@@ -72,7 +73,11 @@ public static PathRetractionStrategy instance() {
public void apply(final Traversal.Admin<?, ?> traversal) {
// do not apply this strategy if there are lambdas as you can't
introspect to know what path information the lambdas are using
// do not apply this strategy if a PATH requirement step is being
used (in the future, we can do PATH requirement lookhead to be more intelligent
about its usage)
- if (TraversalHelper.anyStepRecursively(step -> step instanceof
LambdaHolder || step.getRequirements().contains(TraverserRequirement.PATH),
TraversalHelper.getRootTraversal(traversal)))
+ // do not apply this strategy if a VertexProgramStep is present
with LABELLED_PATH requirements
--- End diff --
Fixed
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