zihaozeng0021 opened a new issue, #2490:
URL: https://github.com/apache/age/issues/2490
**Describe the bug**
A relationship created earlier in the same Cypher query is not matched as
expected after a `WITH` and `UNWIND` pipeline.
The query creates one relationship, expands two identical lookup items with
`UNWIND`, and attempts to match that relationship once for each input row. The
resulting relationship count should be `2`, but the query evaluates the
condition as false and returns `"FAIL"`.
**How are you accessing AGE (Command line, driver, etc.)?**
* Command line using interactive `psql`
* Executed through `docker exec`
```text
docker exec -it test psql -U postgres -d postgres
```
**What data setup do we need to do?**
Start Apache AGE:
```text
docker run --rm --name test -e POSTGRES_PASSWORD=agepass -p 5432:5432
apache/age:latest
```
Connect using interactive `psql`:
```text
docker exec -it test psql -U postgres -d postgres
```
Load AGE, configure the search path, and create the graph:
```pgsql
LOAD 'age';
SET search_path = ag_catalog, public;
SELECT create_graph('test');
```
No separate graph data setup is required because the affected query creates
the nodes and relationship itself.
**What is the necessary configuration info needed?**
* Docker image: `apache/age:latest`
* PostgreSQL: `18.1`
* Apache AGE: `1.7.0`
* AGE extension installed by the Docker image
* `search_path` set to `ag_catalog, public`
* Operating system: WSL2, Ubuntu 24.04.1 LTS
* Installation method: Docker
**What is the command that caused the error?**
```pgsql
SELECT *
FROM cypher('test', $cypher$
CREATE (a:N)-[:R {id:1}]->(b:N)
WITH [{type:'R', id:1}, {type:'R', id:1}] AS items
UNWIND items AS item
MATCH ()-[r:R]->()
WHERE r.id = item.id
RETURN CASE
WHEN count(r) = 2 THEN 'PASS'
ELSE 'FAIL'
END AS value
$cypher$) AS (value agtype);
```
Actual result:
```text
value
--------
"FAIL"
(1 row)
```
**Expected behavior**
`UNWIND` should produce two input rows.
For each input row, the relationship created earlier in the same query
should match `r.id = item.id`. The resulting `count(r)` should therefore be
`2`, and the query should return:
```text
value
--------
"PASS"
(1 row)
```
**Environment (please complete the following information):**
* Apache AGE version: `1.7.0`
* PostgreSQL version: `18.1`
* Docker image: `apache/age:latest`
* Operating system: WSL2, Ubuntu 24.04.1 LTS
* Access method: interactive `psql` through `docker exec`
**Additional context**
The behavior was reproduced twice in clean Docker containers.
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