well the alternative to full outer join is a union of two outer joins - more 
tedious.    “full outer join” isn’t in the library but you can just subclass 
Join and do a  @compiles to get that exact syntax.



On Dec 2, 2013, at 2:05 PM, Chris Withers <ch...@simplistix.co.uk> wrote:

> I have a self join (same one I've been asking about recently) and turns out 
> that there should be a one to one mapping for the aggregated rows on one side 
> to the aggregated rows on the other side.
> 
> If that's not true, then the returned rows are rubbish. In all my current use 
> cases it *should* be true but I'm looking for a join that will show me when 
> something has changed by having nulls in either the left or right side of the 
> join.
> 
> If you can suggest a way that doesn't involve a full outer join, I'm all ears 
> :-)
> 
> On 01/12/2013 22:20, Michael Bayer wrote:
>> I have a similar question - why ?
>> 
>> 
>> On Dec 1, 2013, at 5:08 PM, Chris Withers <ch...@simplistix.co.uk> wrote:
>> 
>>> This feels like a newbie question, but how would I do a full outer join in 
>>> SQLAlchemy?
>>> 
>>> Chris
>>> 
>>> --
>>> Simplistix - Content Management, Batch Processing & Python Consulting
>>>            - http://www.simplistix.co.uk
>>> 
>>> --
>>> 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.
>> 
> 
> -- 
> Simplistix - Content Management, Batch Processing & Python Consulting
>            - http://www.simplistix.co.uk
> 
> -- 
> 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.

Attachment: signature.asc
Description: Message signed with OpenPGP using GPGMail

Reply via email to