[jira] [Updated] (TINKERPOP3-822) Neo4j GraphStep with element arguments ignores has

["stephen mallette (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TINKERPOP3-822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stephen mallette updated TINKERPOP3-822:
----------------------------------------
         Assignee: stephen mallette
    Fix Version/s: 3.0.1-incubating

I discovered a similar issue in TinkerGraph a few days ago working on something unrelated.  I noticed the code was the same in Neo4j but hadn't gone to fix it yet.  Thanks for reporting this - i'll see if i can resolve it for 3.0.1 set to release today.

> Neo4j GraphStep with element arguments ignores has
> --------------------------------------------------
>
>                 Key: TINKERPOP3-822
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP3-822
>             Project: TinkerPop 3
>          Issue Type: Bug
>          Components: neo4j
>    Affects Versions: 3.0.0-incubating
>            Reporter: Geoff Reedy
>            Assignee: stephen mallette
>             Fix For: 3.0.1-incubating
>
>
> When a neo4j traversal is started with explicit elements these elements are returned even if they do not satisfy has filters that have been merged into the start step. For example:
> {noformat}
> gremlin> graph = Neo4jGraph.open('/tmp/neo4j')
> ==>neo4jgraph[EmbeddedGraphDatabase [/tmp/neo4j]]
> gremlin> v0 = graph.addVertex(label, "foo")
> ==>v[0]
> gremlin> g = graph.traversal()
> ==>graphtraversalsource[neo4jgraph[EmbeddedGraphDatabase [/tmp/neo4j]], standard]
> gremlin> g.V(v0).has(label, "bar")
> ==>v[0]
> gremlin> g.V(v0).map{it.get()}.has(label, "bar") // map prevents has from merging into start step
> gremlin> g.V(v0).has("a", "b")
> ==>v[0]
> {noformat}



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