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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
LOAD 'age';
SET search_path TO ag_catalog;
SELECT create_graph('cypher_unwind');
-- Create nodes and relations
SELECT * FROM cypher('cypher_unwind', $$
CREATE (n {name: 'node1', a: [1, 2, 3]}),
(m {name: 'node2', a: [4, 5, 6]}),
(o {name: 'node3', a: [7, 8, 9]}),
(n)-[:KNOWS]->(m),
(m)-[:KNOWS]->(o)
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH (n)
RETURN n
$$) as (i agtype);
--
-- Test UNWIND clause
--
SELECT * FROM cypher('cypher_unwind', $$
UNWIND [1, 2, 3] AS i
RETURN i
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH (n)
WITH n.a AS a
UNWIND a AS i
RETURN *
$$) as (i agtype, j agtype);
SELECT * FROM cypher('cypher_unwind', $$
WITH [[1, 2], [3, 4], 5] AS nested
UNWIND nested AS x
UNWIND x AS y
RETURN y
$$) as (i agtype);
-- UNWIND vertices
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=(n)-[:KNOWS]->(m)
UNWIND nodes(p) as node
RETURN node
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=(n)-[:KNOWS]->(m)
UNWIND nodes(p) as node
RETURN node.name
$$) as (i agtype);
-- UNWIND edges
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=(n)-[:KNOWS]->(m)
UNWIND relationships(p) as relation
RETURN relation
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=(n)-[:KNOWS]->(m)
UNWIND relationships(p) as relation
RETURN type(relation)
$$) as (i agtype);
-- UNWIND paths (vle)
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=({name:'node1'})-[e:KNOWS*]->({name:'node3'})
UNWIND [p] as path
RETURN path
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=({name:'node1'})-[e:KNOWS*]->({name:'node3'})
UNWIND [p] as path
RETURN relationships(path)
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=({name:'node1'})-[e:KNOWS*]->({name:'node3'})
UNWIND [p] as path
UNWIND relationships(path) as edge
RETURN edge
$$) as (i agtype);
-- Unwind with SET clause
SELECT * FROM cypher('cypher_unwind', $$
MATCH p=(n)-[:KNOWS]->(m)
UNWIND nodes(p) as node
SET node.type = 'vertex'
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH (n)
RETURN n
$$) as (i agtype);
--
-- Issue 1302
--
SELECT create_graph('issue_1302');
SELECT * FROM cypher('cypher_unwind', $$
CREATE (agtype {name: 'node1', a: [1, 2, 3]}),
(m {name: 'node2', a: [4, 5, 6]}),
(o {name: 'node3', a: [7, 8, 9]}),
(n)-[:KNOWS]->(m),
(m)-[:KNOWS]->(o)
$$) as (i agtype);
SELECT * FROM cypher('cypher_unwind', $$
MATCH (n)
WITH n.a AS a
UNWIND a AS i
RETURN *
$$) as (i agtype, j agtype);
SELECT * FROM cypher('cypher_unwind', $$
UNWIND NULL as i
RETURN i
$$) as (i agtype);
--
-- Clean up
--
SELECT drop_graph('cypher_unwind', true);
SELECT drop_graph('issue_1302', true);
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