How can I perform advanced queries using Flask-SQLAlchemy?

How can I perform advanced queries using Flask-SQLAlchemy?

You can use methods like filter(), join(), and subquery() to perform advanced queries in Flask-SQLAlchemy.

Can you give me an example of using a join in a query?

Sure! You can use db.session.query(User).join(Post).filter(Post.title == 'My Post') to join users with their posts.

What about using subqueries?

You can create a subquery like this: subq = db.session.query(Post).filter(Post.user_id == User.id).subquery() and then use it in your main query.

Are there any performance considerations I should keep in mind?

Yes, always be cautious with joins and subqueries as they can impact performance. Use indexing and limit your results when possible.