Hi,
I am using hibernate JPA with a legacy Oracle system.
M:M tables are used. I notice hibernate adds constraints to the columns of the M:M table.

This is evident when I issue the command:

SELECT * FROM USER_CONSTRAINTS WHERE TABLE_NAME = 'MYMMTABLE'

I do not wish hibernate to add these constraints to the M:M table, how do I turn this feature off?

Some update on this, I debugged through the start up.
In the class org.hibernate.cfg.Configuration and the method generateSchemaUpdateScript(), it loops through all tables, and then loops through all foreign keys for each table and then decides to add constraints for all the foreign keys.

I don't want constraints to be added, does anyone know how I can turn this feature off?

hibernate.hbm2ddl.auto=none

thanks, I achieved that by removing this line altogether.
Good stuff.