JPA Hibernate Call Postgres Function Void Return MappingException:

Question

I have a problem where I am getting an: org.hibernate.MappingException: No Dialect mapping for JDBC type: 1111 when trying to call a postgres function using JPA cre

Answer 1

This could be a hack, but it worked for me and is pretty simple. Just change the query to:

SELECT count(*) FROM your_function();

Now it returns a proper integer and hibernate is happy.