[SOLVED] Liquibase with Hibernate drop and add foreign key contraint every time. Why?

Liquibase with Hibernate drop and add foreign key contraint every time. Why?

I'm using Liquibase maven plugin. There are some entity in my spring-boot application and I used the command mvn liquibase:diff with the DB empty. So the generated changelog represent the initial DB structure.

This first step works well, when I start my application, Liquibase execute this generated changelog and create all the tables, contraint, sequence.

But after the creation of DB, if I execute again the command mvn liquibase:diff, I expect the new generated changelog to be empty. Instead, every time I run the command mvn liquibase:diff Liquibase create these changeset.

- changeSet:
    id: 1709542912189-1
    author: MarcelloVestri (generated)
    changes:
    - dropForeignKeyConstraint:
        baseTableName: patient
        constraintName: FK_PAT_DOC
- changeSet:
    id: 1709542912189-2
    author: MarcelloVestri (generated)
    changes:
    - addForeignKeyConstraint:
        baseColumnNames: PAT_DOC_ID
        baseTableName: patient
        constraintName: FK_PAT_DOC
        referencedColumnNames: DOC_ID
        referencedTableName: doctor

I think that is a Hibernate routine drop and recreate the foreign key. I searched on internet but I haven't found anything about why this happens.

Is there any property of Hibernate to make it not have this behavior?

Solution