Hello.
On 13.6.2013 18:44, Michael Bayer wrote: > > On Jun 13, 2013, at 11:03 AM, Ladislav Lenart <lenart...@volny.cz> wrote: > >> Unfortunately migrating to SA 0.9 is not an option for me at the moment due >> to >> severe time constraints. > > I was pretty sure you'd say that, though I'm really looking to verify that my > fixes are going to hold up under real world usage. The issues you're having > are real issues, and they've been fixed. I will make a 1:1 self-containted test case for this issue during the next week, I promise! >> Could you please help me write SA query for 0.7.9 that uses index scan and >> also >> loads all the necessary relations? It must be possible with a proper use of >> from_statement(), contains_eager() and/or other SA features. It is just that >> toy >> examples in the documentation don't help me much with this complex beast. > > you use the SQL expression language in conjunction with .join()/outerjoin(), > pass to query.select_from(), then use contains_eager(): > > j = > Foo.__table__.outerjoin(Bar.__table__.outerjoin(BarA.__table__).outerjoin(Data.__table__)) > > q = s.query(Foo).\ > select_from(j).\ > filter(Foo.id.in_([1, 2, 3])).\ > options( > contains_eager(Foo.bar), > contains_eager(Foo.bar.of_type(BarA), BarA.data) > ) Thank you very much! I am going to try it :-) Ladislav Lenart -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/groups/opt_out.
