Hibernate, Postgresql: Column “x” is of type oid but expression is of type byte

Question

I have a strange problem regarding the hibernate mapping containing large objects (BLOB), when switching between different databases.

@Lob
private byte[] bin         


        

Answer 1

For me this may have meant once "revert your postgres jdbc version back down to 9.3-1101.jdbc4"

  
    org.postgresql
    postgresql
    9.4-1200-jdbc41
  

worked as well. Newer than that failed...