col.in_(select([MyClass.col2]))

Mike Conley wrote:
> On Wed, Mar 18, 2009 at 11:00 AM, Michael Bayer
> <[email protected]>wrote:
>
>>
>> Sanjay wrote:
>> >
>> > Hi,
>> >
>> > I want to write something like
>> >
>> > query.filter(BizObj.col.in_("SELECT col FROM some_table")).
>> >
>> > Could not find out how to do it. The code on neither the above nor the
>> > below worked.
>> >
>> > query.filter(BizObj.col1.in_(sqlalchemy.sql.text("SELECT col1 FROM
>> > sometable"))).
>>
>>
>> in_() is going to want a select() construct for that calling style.  if
>> you don't have a Table or mapped class for "sometable", you can make an
>> ad-hoc table using table():
>>
>> from sqlalchemy.sql import table, column
>>
>> BizObj.col1.in_(select([table("sometable", column("col1")).c.col1]))
>>
>>
> and if I do have a mapped class, say SomeClass, is there an ORM-like
> syntax
> to use  the class or do I drop into SQL-like syntax using
> SomeClass.__table__ ?
>
> query = session.query(BizObj).filter(BizObj.col1.in_(??????))
>
> >
>


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