apoc.agg.graph

Function

apoc.agg.graph(path ANY) - returns all distinct NODE and RELATIONSHIP values collected into a MAP with the keys nodes and relationships.

Signature

apoc.agg.graph(element :: ANY) :: MAP

Input parameters

Name Type Default

element

ANY

null

Usage examples

The examples in this section are based on the following sample graph:

CREATE (Keanu:Person {name:'Keanu Reeves', born:1964})
CREATE (TomH:Person {name:'Tom Hanks', born:1956})

CREATE (TheDevilsAdvocate:Movie {title:"The Devil's Advocate", released:1997, tagline:'Evil has its winning ways'})
CREATE (TheMatrix:Movie {title:'The Matrix', released:1999, tagline:'Welcome to the Real World'})
CREATE (TheMatrixReloaded:Movie {title:'The Matrix Reloaded', released:2003, tagline:'Free your mind'})

CREATE (SleeplessInSeattle:Movie {title:'Sleepless in Seattle', released:1993, tagline:'What if someone you never met, someone you never saw, someone you never knew was the only someone for you?'})
CREATE (ThatThingYouDo:Movie {title:'That Thing You Do', released:1996, tagline:'In every life there comes a time when that thing you dream becomes that thing you do'})
CREATE (YouveGotMail:Movie {title:"You've Got Mail", released:1998, tagline:'At odds in life... in love on-line.'})

CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrix)
CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixReloaded)
CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheDevilsAdvocate)

CREATE (TomH)-[:ACTED_IN {roles:['Joe Fox']}]->(YouveGotMail)
CREATE (TomH)-[:ACTED_IN {roles:['Sam Baldwin']}]->(SleeplessInSeattle)
CREATE (TomH)-[:ACTED_IN {roles:['Mr. White']}]->(ThatThingYouDo);

We can extract a sub graph of the movies that Keanu Reeves and Tom Hanks acted in before 1998, by running the following query:

MATCH path = (person:Person)-[:ACTED_IN]->(movie)
WHERE movie.released < 1998
WITH apoc.agg.graph(path) AS g
RETURN g.nodes AS nodes, g.relationships AS relationships;
Table 1. Results
nodes relationships

[(:Person {name: "Keanu Reeves", born: 1964}), (:Person {name: "Tom Hanks", born: 1956}), (:Movie {tagline: "Evil has its winning ways", title: "The Devil’s Advocate", released: 1997}), (:Movie {tagline: "What if someone you never met, someone you never saw, someone you never knew was the only someone for you?", title: "Sleepless in Seattle", released: 1993}), (:Movie {tagline: "In every life there comes a time when that thing you dream becomes that thing you do", title: "That Thing You Do", released: 1996})]

[[:ACTED_IN {roles: ["Neo"]}], [:ACTED_IN {roles: ["Sam Baldwin"]}], [:ACTED_IN {roles: ["Mr. White"]}]]