age

pig build pkg age         # 构建 RPM / DEB 包

pig repo add pgsql -u          # 添加仓库并更新缓存

shared_preload_libraries = 'age';

CREATE EXTENSION age;

CREATE EXTENSION age;
LOAD 'age';
SET search_path = ag_catalog, "$user", public;

SELECT create_graph('my_graph');

SELECT * FROM cypher('my_graph', $$
    CREATE (:Person {name: 'Alice', age: 30})
$$) AS (v agtype);

SELECT * FROM cypher('my_graph', $$
    CREATE (:Person {name: 'Bob', age: 25})
$$) AS (v agtype);

SELECT * FROM cypher('my_graph', $$
    MATCH (a:Person), (b:Person)
    WHERE a.name = 'Alice' AND b.name = 'Bob'
    CREATE (a)-[e:KNOWS {since: 2020}]->(b)
    RETURN e
$$) AS (e agtype);

SELECT * FROM cypher('my_graph', $$
    MATCH (v)-[r]-(v2)
    RETURN v, r, v2
$$) AS (v agtype, r agtype, v2 agtype);

SELECT * FROM cypher('my_graph', $$
    MATCH (a:Person)-[:KNOWS*1..3]->(b:Person)
    RETURN a.name, b.name
$$) AS (source agtype, target agtype);

SELECT t.*, c.* FROM my_table t
JOIN cypher('my_graph', $$
    MATCH (n:Person) RETURN n.name, id(n)
$$) AS c(name agtype, id agtype)
ON t.graph_id = c.id;