Andrey Skorikov created TINKERPOP-2133:
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Summary: Use neo4j indicex 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
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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