Grails not updating database
Hibernate batches up SQL statements and executes them as late as possible, often at the end of the request when flushing and closing the session.If you are using Grails this typically done for you automatically, which manages your Hibernate session.Normal databases ( When building applications you have to consider the problem domain you are trying to solve.For example if you were building an Amazon-style bookstore you would be thinking about books, authors, customers and publishers to name a few.If you are using GORM outside of Grails then you may need to manually flush the session at the end of your operation.
Upgrading to the latest version of one of these will make the web safer, faster and better looking.
Fortunately, "none" is not a common domain class property name.
Table-per-hierarchy mapping has a down side in that you cannot have non-nullable properties with inheritance mapping.
Grails 3.2.x is based on Spring Boot 1.4.x which enforces Hibernate 5.0.x as the default version.
If you want to continue to use Hibernate 4 you must explicitly declare the Hibernate 4 dependences in compile("org.grails:gorm-hibernate5-spring-boot:7.0.1.