jrgemignani commented on issue #897:
URL: https://github.com/apache/age/issues/897#issuecomment-1570808750
Here is a slightly less complicated command that exhibits both errors -
```
psql-11.5-5432-pgsql=# SELECT * FROM cypher('test', $$ MERGE
()-[:B]->(x:C)-[:E]->(x:C)<-[f:F]-(y:I) $$) as (r agtype);
WARNING: problem in alloc set ExecutorState: detected write past chunk end
in block 0x136b500, chunk 0x1378f48
WARNING: problem in alloc set ExecutorState: bad single-chunk 0x1378fe0 in
block 0x136b500
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
!>
```
It appears that this MERGE bug has to do with memory allocation. It seems
likely that the successive tuple creates aren't properly allocating tuples.
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