I use JPA 2.1 (Hibernate), Postgres 9.6, and I need to pass java.util.UUID as a parameter to StoredProcedureQuery like this:
StoredProcedureQuery proc = em.createStoredProcedureQuery(myProc)
.registerStoredProcedureParameter(0, UUID.class, ParameterMode.IN)
.registerStoredProcedureParameter(1, ...)
.setParameter(0, myUuid)
.setParameter(1, ...);
By default, the Java type UUID is interpreted as Postgres type bytea and I get something like:
ERROR: function my_function(bytea, ...) does not exist.
Of course it does not exist, because my function is:
my_function(UUID, ...)
So, is there any way to define explicitly, which database-level type must be used for a particular parameter?
Might be something like the one we use in entity classes with the annotation:
@Type(type="pg-uuid")
private UUID uuid;
One obvious workaround is to pass the value as a String, and then cast it to UUID inside the function, but...