apoc.meta.stats

Procedure

apoc.meta.stats() - returns the metadata stored in the transactional database statistics.

This procedure is not considered safe to run from multiple threads. It is therefore not supported by the parallel runtime (introduced in Neo4j 5.13). For more information, see the Cypher Manual → Parallel runtime.

Signature

apoc.meta.stats() :: (labelCount :: INTEGER, relTypeCount :: INTEGER, propertyKeyCount :: INTEGER, nodeCount :: INTEGER, relCount :: INTEGER, labels :: MAP, relTypes :: MAP, relTypesCount :: MAP, stats :: MAP)

Output parameters

Name Type

labelCount

INTEGER

relTypeCount

INTEGER

propertyKeyCount

INTEGER

nodeCount

INTEGER

relCount

INTEGER

labels

MAP

relTypes

MAP

relTypesCount

MAP

stats

MAP

Usage Examples

The example below is based on the following sample graph:

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

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 (TheMatrixRevolutions:Movie {title:'The Matrix Revolutions', released:2003, tagline:'Everything that has a beginning has an end'})
CREATE (SomethingsGottaGive:Movie {title:"Something's Gotta Give", released:2003})
CREATE (TheDevilsAdvocate:Movie {title:"The Devil's Advocate", released:1997, tagline:'Evil has its winning ways'})

CREATE (YouveGotMail:Movie {title:"You've Got Mail", released:1998, tagline:'At odds in life... in love on-line.'})
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 (CloudAtlas:Movie {title:'Cloud Atlas', released:2012, tagline:'Everything is connected'})

CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrix)
CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixReloaded)
CREATE (Keanu)-[:ACTED_IN {roles:['Neo']}]->(TheMatrixRevolutions)
CREATE (Keanu)-[:ACTED_IN {roles:['Julian Mercer']}]->(SomethingsGottaGive)
CREATE (Keanu)-[:ACTED_IN {roles:['Kevin Lomax']}]->(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)
CREATE (TomH)-[:ACTED_IN {roles:['Zachry', 'Dr. Henry Goose', 'Isaac Sachs', 'Dermot Hoggins']}]->(CloudAtlas);
CALL apoc.meta.stats();
Table 1. Results
labelCount relTypeCount propertyKeyCount nodeCount relCount labels relTypes relTypesCount stats

9

5

17

11

9

{Movie: 9, Person: 2}

{(:Person)-[:ACTED_IN]→(): 9, ()-[:ACTED_IN]→(:Movie): 9, ()-[:ACTED_IN]→(): 9}

{ACTED_IN: 9}

{relTypeCount: 5, propertyKeyCount: 17, labelCount: 9, nodeCount: 11, relCount: 9, labels: {Movie: 9, Person: 2}, relTypes: {(:Person)-[:ACTED_IN]→(): 9, ()-[:ACTED_IN]→(:Movie): 9, ()-[:ACTED_IN]→(): 9}}

Note that the relTypesCount field returns a count equal to MATCH ()-[r:RELATIONSHIP_TYPE]→() RETURN count(r) for each relationship type (unique relationships versus unique patterns).