I have a problem with a project of java spring boot JPA hibernate, it turns out that everything works well when registering an X model, but when I pre load data directly to the base Postgres 9.6 at the time of registering I get error by the key duplicated in the id, so if I preload 5 records in the base I should try to insert 5 times with error so that just at the sixth time I insert correctly with id = 6, it happens that to put into production I must migrate pre-insert more than 2 thousand records and I do not want to be giving 2 thousand times to register for the id this ready, someone knows how to modify the value of the id for each model that manages the JPA