UnknownError about return * in subquery

[ljhhuxiaoba]

I execute a query on my neo4j database ,and an error occurs.

Neo4j version: 5.6.0 Enterprise operating system: windows 10 API：Cypher version 9 query: match (a) return ,exists{with a return } error message: Neo.DatabaseError.General.UnknownError Failed to execute query in transaction "bolt-19161"

But if I execute queries such as:"match (a) return ,exists{with a return a}" or "match (a) return exists{with a return }",then they will run successfully. The same error also occurs in count{}.

Expected behavior: The query should run successfully and no error occurs.

Actual behavior: The query failed.

[loveleif]

Thanks for keeping them coming @ljhhuxiaoba! Looks like this could be an issue with query parsing. I've created a ticket in our internal bug tracker for further investigation (link).

[ljhhuxiaoba]

The same query on Neo4j version: 5.7.0 Enterprise will throw another error: Neo.DatabaseError.General.UnknownError RETURN should note its Scope in the SemanticState

[arnefischereit]

Hi @ljhhuxiaoba,

This is the same issue as #13166 and should therefore also be fixed as part of 5.11.

Regards,

Arne