Imagine you are working for a company, and this company uses an SQL Alchemy library.
Your boss gives you a crucial task — you have to delete all rows from the table that are older than 5 years.
"Easy task", you think, and end up with the following code:
query = session.query(SomeTable)
query.filter(SomeTable.creation_date <= 5).delete()
You hit the run button. What is going to happen?