On production environment I am using spring.jpa.hibernate.ddl-auto=validate but I found new columns are added in my production DB automatically. 

I have done a small POC with dummy application it is not adding a column on my local system.

Can anyone help me understand what could be the issue with `spring.jpa.hibernate.ddl-auto=validate` property.

Any help is appreciated. 

PFA I visited the documentation but did not get enough details:
[![enter image description here](https://i.stack.imgur.com/EJ9fp.png)](https://i.stack.imgur.com/EJ9fp.png)

Documentation URL : 
[enter link description here](https://docs.jboss.org/hibernate/orm/5.2/userguide/html_single/Hibernate_User_Guide.html#configurations-hbmddl)