optionals commented on PR #2165:
URL: https://github.com/apache/age/pull/2165#issuecomment-3558965443
```sql
-- load 'age';
-- SET search_path = ag_catalog, "$user", public;
select * from create_graph('knowledge_graph');
SELECT
*
FROM
cypher ('knowledge_graph', $$
MERGE (n:TOPIC {id: '3tbr5xae-topic-ft1a', kg_id:
'3tbr5xae'})
RETURN n$$) AS (n agtype);
PREPARE age_merge_topic (agtype) AS
SELECT * FROM cypher('knowledge_graph', $$
MATCH (n:TOPIC {id: $id, kg_id: $kg_id})
SET n.name = $name
RETURN n
$$, $1) AS (n agtype);
-- crash in postgres 18.1
EXECUTE age_merge_topic('{"id": "3tbr5xae-topic-ft1a","kg_id": "3tbr5xae",
"name": "12"}'::agtype);
-- fine
PREPARE cypher_stored_procedure(agtype) AS
SELECT *
FROM cypher('knowledge_graph', $$
MATCH (v:Person)
WHERE v.name = $name
RETURN v
$$, $1)
AS (v agtype);
EXECUTE cypher_stored_procedure('{"name": "Tobias"}');
```
The above statements will cause the database to crash: Segmentation fault:
11, currently only found in the set operation.
But this statement runs normally when using the Docker version of apache/age
(Debian 17.7-3.pgdg13+, age 1.6.0).
macbook pro with with m4 , macOS 26.1
posgtgresql 18.1 from Homebrew
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