Hi,
you opened an issue on Hibernate Search but it looks like you just want to ask a question regarding Hibernate ORM. If so, please use the forums or IRC channels as described here:
http://hibernate.org/community/

For help on migrations, you should be able to find some guidance in the migration guide:
http://hibernate.org/orm/documentation/5.0/

I'll close this issue as it's not related to Hibernate Search, please let me know if I have misunderstood.