Apache Derby is incompatible with PostgreSQL for rollback(savepoint): DERBY-5921
hjohn opened this issue · comments
John Hendrikx commented
It is essential for a 1.0 release that MediaSystem can run without setting a database yourself. Derby is used as the fallback built-in database that needs no configuration, but unfortunately it has some strange behaviour when rolling back save points (it closes results sets that were created before the savepoint).