I'm new to SQL and so this is probably a stupid question but can I reduce the duplication in this query? My actual query involves more complex expressions. Right now I'm just doing string concatenation from the language I'm using to generate the long query but I think there must be a way to do this with plain SQL?
select x + y as a, x + z as b, (x + y) / (x + z) as c from integers order by z + (x + y) / (x + z) desc limit 10;
What I'd like:
select x + y as a, x + z as b, a / b as c from integers order by z + c desc limit 10; -- Fails with: Query Error: error: column "a" does not exist
create table integers as select x, y, z from generate_series(1, 10) x, generate_series(x, 10) y, generate_series(y, 10) z;