Different behaviors when adding "dedup()"

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兰军浩

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Mar 28, 2024, 5:12:12 AMMar 28

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I think the traversal is really weird.

first traversal: g.addV().addV().limit(0) -> creates 1 vertex
second traversal: g.addV().addV().dedup().limit(0) -> creates 2 vertices

And limit(0) is also strange and I don't really know what the expected behavior should be here with Gremlin.Maybe there is a bug in it?

Florian Hockmann

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Mar 28, 2024, 5:24:47 AMMar 28

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This question originated on the JanusGraph issue tracker where it was first reported as a bug in JanusGraph: https://github.com/JanusGraph/janusgraph/issues/4341

I mostly compared the behavior with TinkerGraph to determine whether there's a difference, but both implementations behave the same for these traversals.

The description of these traversals as being weird comes from me, but I mostly meant a more complicated version which includes more steps which didn't make much sense to me. The traversals are probably generated by cypher-for-gremlin.

But I wasn't sure what the expected behavior is with the limit(0), 2x addV() and the added dedup() in the second traversal which is why my advise was to ask this here.