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v4.0
    v4.0

    Overview of RETURN Clause

    Most of the preceding examples use return to call custom alias and process, compute and assemble it into the final result.

    Suppose that nodes, edges and paths are the custom aliases of nodes, edges and paths, user can make the following calls in return:

    When the structure type of the returned alias is NODE, EDGE or PATH, system properties (_uuid, _id, _from, _to, _from_uuid, _to_uuid) and schema of nodes and/or edges are carried by default, the table below will not repeat these info.

    Call Format Structure Type Meaning
    nodes NODE Nodes that do not carry any custom properties
    nodes.<property> ATTR A property of the nodes (or empty if the property does not exist; the same below)
    nodes.@ ATTR Schemas of the nodes
    nodes{<property>, ...} NODE Nodes that carry several custom properties
    nodes{*} NODE Nodes that carry all custom properties
    edges EDGE Edges that do not carry any custom properties
    edges.<property> ATTR A property of the edges
    edges.@ ATTR Schemas of the edges
    edges{<property>, ...} EDGE Edges that carry several custom properties
    edges{*} EDGE Edges that carry all custom properties
    paths PATH Paths that do not carry any custom properties of its nodes and edges
    paths{<property>, ...}{<property>, ...} PATH Paths that carry several custom properties of its nodes and edges
    paths{*}{<property>, ...} PATH Paths that carry all custom properties of its nodes and several custom properties of its edges
    paths{<property>, ...}{*} PATH Paths that carry several custom properties of its nodes and all custom properties of its edges
    paths{*} PATH Paths that carry all custom properties of its nodes and edges

    User may gradually comprehend the concepts above as continue reading.

    Read chapter Data Stream, Clause for the detailed description of return.

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