On Jan 7, 2013, at 9:19 PM, Ji Zhang wrote:
> Hi,
>
> My SQL is like "select host, count(*) as cnt from tbl group by host order by
> cnt desc"
>
> How to achieve this using ORM?
>
> session.query(Tbl.host,
> func.count('*').label('cnt')).group_by(Tbl.host).order_by(???)
>
> I don't wanna type again func.count... in order_by().
>
count = func.count('*').label('cnt')
query(Tbl.host, count).group_by(Tbl.host).order_by(count.desc())
or
query(Tbl.host,
func.count('*').label('cnt').group_by(Tbl.host).order_by(desc('cnt'))
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