PostgreSQL Sort

Question

I have a sort problem in PostgreSQL with below data:

name
-----
@CF
@CG
CD
CE

I used select name from table order by name, the

Answer 1

Your undisclosed collation setting obviously ignores the @ character for sort order. Either switch to another collation as suggested by @Craig. Or, if you want to stick to your collation for the rest of the string, add a special case for leading @.

In Postgres you can order by boolean values directly. Default order is FALSE, TRUE, NULL.

ORDER BY name !~~ '@%', name

!~~ being the Postgres shorthand for NOT LIKE.