Make a range in postgres

Question

How can I make a range in a select in PostgreSQL? I'd like to have this result:

num
---
1
2
3
4
5
6

From a query like:

SELECT range(1,6) AS num;

Answer 1

SELECT  *
FROM    generate_series(1, 6) num

https://www.postgresql.org/docs/current/functions-srf.html