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https://issues.apache.org/jira/browse/TINKERPOP3-968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marko A. Rodriguez updated TINKERPOP3-968:
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Affects Version/s: (was: 3.1.1-incubating)
3.1.0-incubating
> Add first class support for an optional traversal
> -------------------------------------------------
>
> Key: TINKERPOP3-968
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-968
> Project: TinkerPop 3
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.1.0-incubating
> Reporter: pieter martin
> Assignee: Marko A. Rodriguez
>
> Both SparQL and Cypher use the "Optional" keyword to indicate an optional
> traversal. SQL uses the "left join".
> Gremlin has no first class support for an optional traversal. It can be
> achieved with the choose step but it is verbose, unintuitive and not what the
> choose step is intended for.
> The benefits of optional traversals are many. In particular it makes it
> trivial to load complete subgraphs/trees with one easy to read intuitive
> gremlin statement.
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