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From "stephen mallette (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (TINKERPOP-2133) Use neo4j index lookup in Neo4jGraphStep with HasContainers containing TextP predicates
Date Wed, 07 Aug 2019 16:31:01 GMT

     [ https://issues.apache.org/jira/browse/TINKERPOP-2133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stephen mallette closed TINKERPOP-2133.
---------------------------------------
       Resolution: Done
         Assignee: stephen mallette
    Fix Version/s: 3.5.0

> Use neo4j index lookup in Neo4jGraphStep with HasContainers containing TextP predicates
> ---------------------------------------------------------------------------------------
>
>                 Key: TINKERPOP-2133
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2133
>             Project: TinkerPop
>          Issue Type: Improvement
>          Components: neo4j
>    Affects Versions: 3.4.0
>            Reporter: Andrey Skorikov
>            Assignee: stephen mallette
>            Priority: Trivial
>             Fix For: 3.5.0
>
>
> When evaluating a Neo4jGraphStep with HasContainers containing TextP predicates, for
example: g.V().has("Label", "name", TextP.containing("substring")), a scan over all vertices
with the label is performed.
> Currently, an index lookup is used only when an complete property value is given, that
is g.V().has("Label", "name", "exact") - implemented [here|https://github.com/apache/tinkerpop/blob/master/neo4j-gremlin/src/main/java/org/apache/tinkerpop/gremlin/neo4j/structure/trait/NoMultiNoMetaNeo4jTrait.java#L172].
> Allowing to use an index lookup for TextP predicates like containing, startingWith would
substantially improve the evaluation performance.



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