I deployed my database to Heroku and all of my collections are there but the posts itself didn't migrate

System Information
  • 3.1.0-alpha.5
  • Mac OS
  • PostgreSQL
  • v14.15.1
  • 6.14.8
  • Not using Yarn

It’s all in the title really but i deployed my Strapi application to Heroku and my collections did migrate but the posts itself didn’t. So a collection i have is “Projects”, when i log into the application i do see the collection but the collection doesnt contain any projects. Do i need to export my database manually and import it on the server or should this happen automatically.
This is my first time deploying a Strapi application so bear with me if i don’t understand some of the concepts.

Thank you!