I want to create star shaped graph using single "CREATE" statement of CYPHER.
How to create star shaped graph on AgensGraph?
Use variable on first cypher pattern, and reuse variable on following cypher patterns.
agens=# create (n:v{id:1})-[:e]->(:v{id:2}),
(n)-[:e]->(:v{id:3}),
(n)-[:e]->(:v{id:4});
GRAPH WRITE (INSERT VERTEX 4, INSERT EDGE 3)
agens=# match p = (n:v{id:1})-[:e]->() return p;
p
-----------------------------------------------------
[v[3.1]{"id": 1},e[4.1][3.1,3.2]{},v[3.2]{"id": 2}]
[v[3.1]{"id": 1},e[4.2][3.1,3.3]{},v[3.3]{"id": 3}]
[v[3.1]{"id": 1},e[4.3][3.1,3.4]{},v[3.4]{"id": 4}]
(3 rows)