pdpotter opened a new issue #119:
URL: https://github.com/apache/incubator-age/issues/119
When an edge is created following the documentation, the edge is created in
opposite direction. Steps to reproduce:
Create two vertices
```
select * from cypher('test_graph', $$CREATE (a:Person {id:1}) return a$$) as
(a agtype);
a
------------------------------------------------------------------------------
{"id": 1125899906842625, "label": "Person", "properties": {"id": 1}}::vertex
(1 row)
```
```
select * from cypher('test_graph', $$CREATE (b:Person {id:2}) return b$$) as
(b agtype);
b
------------------------------------------------------------------------------
{"id": 1125899906842626, "label": "Person", "properties": {"id": 2}}::vertex
(1 row)
```
Create an edge between the vertices. If the edge is returned, it is already
clear the edge has the opposite direction.
```
select * from cypher('test_graph', $$MATCH (a:Person {id:1}), (b:Person
{id:2}) CREATE (a)-[e:knows]->(b) return e$$) as (e agtype);
e
------------------------------------------------------------------------------------------------------------------------------
{"id": 1407374883553287, "label": "knows", "end_id": 1125899906842625,
"start_id": 1125899906842626, "properties": {}}::edge
(1 row)
```
When querying the graph for the edge in the wanted direction, no results are
returned.
```
select * from cypher('test_graph', $$MATCH (a:Person {id:1})-[e]->(b:Person
{id:2}) return e$$) as (e agtype);
e
---
(0 rows)
```
When querying the graph for the edge in the opposite direction, the edge is
returned as a result.
```
select * from cypher('test_graph', $$MATCH (a:Person {id:2})-[e]->(b:Person
{id:1}) return e$$) as (e agtype);
e
------------------------------------------------------------------------------------------------------------------------------
{"id": 1407374883553287, "label": "knows", "end_id": 1125899906842625,
"start_id": 1125899906842626, "properties": {}}::edge
(1 row)
```
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