Question

This error occurs in this SQLite query:

select f.rid, c.title, sum(some_expression) as ratio
from doesntmatter
where c.active = 1 or (ratio = 1.0 and c.active = 0
      and c.deactivated in (1, 2, 3, 4, 5)
group by f.rid

This question solves it with having clause:

select f.rid, c.title, sum(some_expression) as ratio
from doesntmatter
where c.active = 1 or (c.active = 0
      and c.deactivated in (1, 2, 3, 4, 5)
group by f.rid
having ratio = 1.0

But in my case this changes the semantics of the expression. Do you know how to achieve the expression that is in the original where clause?

Answer 1

Basically, you can’t reference an aliased column in a where clause. Take a look at this question to see how to workaround that.

Aditionally, you should add to the group by all non-aggregated columns present in the select statement, in this case, c.id and c.title.

It is difficult to rewrite that query for you because the logic is a bit difficult to understand (because of the wrong group by).

Edit:

After a second thought, you might just need to correct the group by.

select c.id, c.title, sum(some_expression) as ratio
from doesntmatter
where c.active = 1 or (c.active = 0 and c.deactivated in (1, 2, 3, 4, 5))
group by c.id, c.title
having ratio = 1.0

Or maybe:

select f.rid, sum(some_expression) as ratio
from doesntmatter
where c.active = 1 or (c.active = 0 and c.deactivated in (1, 2, 3, 4, 5))
group by f.rid
having ratio = 1.0

I can’t help you with the previous part because I don’t know the fields nor the data of your tables nor how to interpret them. But selecting fields not present in the group by is a bad idea. Anyway, remember you can always join back to the original tables and get the info you are looking for, not just the fields displayed in the select.