MuhammadTahaNaveed commented on PR #2082:
URL: https://github.com/apache/age/pull/2082#issuecomment-2321536735
> @rafsun42 The second CREATE command has AB and C as labels but the
relation for AB and _agr_AB_C was not created.
With merge it caused an assertion failure
```
multi-label-PR-review=# CREATE EXTENSION age;
CREATE EXTENSION
multi-label-PR-review=# SET search_path=ag_catalog;
SET
multi-label-PR-review=# SELECT create_graph('graph');
NOTICE: graph "graph" has been created
create_graph
--------------
(1 row)
multi-label-PR-review=# SELECT * FROM cypher('graph', $$CREATE (x:A:B:C)$$)
as (a agtype);
a
---
(0 rows)
multi-label-PR-review=# SELECT * FROM cypher('graph', $$MERGE (x:AB:C)$$) as
(a agtype);
TRAP: failed Assert("IsA(sss, SubqueryScanState)"), File:
"src/backend/executor/cypher_merge.c", Line: 312, PID: 42605
postgres: taha-linux multi-label-PR-review [local]
SELECT(ExceptionalCondition+0x6e)[0x56187d565e11]
../postgres-16/pgsql/lib/age.so(+0x17d16)[0x7fb668ebdd16]
../postgres-16/pgsql/lib/age.so(+0x17fc7)[0x7fb668ebdfc7]
```
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