In my entity class, I want to change the data type of a field but it’s not updating in the database. I am using PostgreSQL. I have also tried adding this:
spring.jpa.hibernate.ddl-auto=update
in application properties and still, it doesn’t work I don’t know why, please help, and thanks.
What I have :
@Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Integer id // change Integer into Long data type in the database
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Answer
If you just created your database and doesn’t have any data in it you can try
spring.jpa.hibernate.ddl-auto=create
update will only update the database rows it won’t alter the table in PostgreSql.