Marko A. Rodriguez created TINKERPOP-1472:
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Summary: RepeatUnrollStrategy does not semi-compile inlined repeat
traversal
Key: TINKERPOP-1472
URL: https://issues.apache.org/jira/browse/TINKERPOP-1472
Project: TinkerPop
Issue Type: Bug
Components: process
Affects Versions: 3.2.2
Reporter: Marko A. Rodriguez
Assignee: Marko A. Rodriguez
Fix For: 3.2.3
There is a bug in {{RepeatUnrollStrategy}}. Assume the following traversal:
{code}
g.V().repeat(outE().inV()).times(2)
{code}
This is currently compiled to:
{code}
g.V().outE().inV().outE().inV()
{code}
It should be compiled to:
{code}
g.V().out().out()
{code}
What is the problem? {{RepeatUnrollStrategy}} is the first strategy that takes
a child traversal and injects it into the parent traversal. By doing that, any
strategies up to that point have not been kicked off and thus, the injected
traversal sequence isn't privy to all the strategies prior to
{{RepeatUnrollStrategy}} (e.g. {{IncidentToAdjacentTraversal}}).
In TINKERPOP-1456 branch, there is the fix as {{InlineFilterStrategy}} was
created and the bug showed itself there. Thus, when TINKERPOP-1456 is merged to
master/, close this ticket as "fixed."
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