Use Graph
You must set current using graph before execute graph match query.
Syntax
USE GRAPH Identifier
Example
-- Set current using graph.
USE GRAPH modern;
INSERT INTO tbl_result
SELECT
a.id,
b.id,
c.id,
c.kind,
d.id,
d.type
FROM (
MATCH (a) -> (b) where b.id > 0 and a.lang is null
MATCH (a) <- (c) where label(c) = 'person'
Let c.kind = 'k' || cast(c.age / 10 as varchar)
MATCH (c) -> (d) where d != b
Let d.type = if (label(d) = 'person', 1, 0)
RETURN a, b, c, d
)
;
Use Instance
An Instance is similar to the database in Hive/Mysql. We can specify the instance for the table/function/graph queryed by the follow dsl.
Syntax
USE INSTANCE Identifier
Example
Use instance geaflow;
USE GRAPH modern;
INSERT INTO tbl_result
SELECT
a.id,
b.id,
c.id,
c.kind,
d.id,
d.type
FROM (
MATCH (a) -> (b) where b.id > 0 and a.lang is null
MATCH (a) <- (c) where label(c) = 'person'
Let c.kind = 'k' || cast(c.age / 10 as varchar)
MATCH (c) -> (d) where d != b
Let d.type = if (label(d) = 'person', 1, 0)
RETURN a, b, c, d
);