On Wed, Aug 9, 2017 at 6:53 PM,  <jens.troe...@gmail.com> wrote:
> Hi,
>
> I came upon this thread because I've got almost the exact same question.
> Several years on, though, how would I go about promoting polymorphic objects
> across siblings today?

UPDATE the discriminator name, perform INSERT / DELETE of joined
inheritance tables as needed....


>
> Thank you!
> Jens
>
>
> On Tuesday, February 9, 2010 at 4:09:23 AM UTC+10, Michael Bayer wrote:
>>
>> Pavel Andreev wrote:
>> > Another quick question: if all I need to do is change the
>> > discriminator column, that is, if I'm sure no other tables are
>> > affected, is there a way to do this without manual table updates?
>> > Simply assigning the attribute doesn't seem to trigger table update.
>>
>> the discriminator is hardwired to the class.  so as long as thats what it
>> sees its going to use that discriminator value.  you'd need to change this
>> over in the manual thing you're doing.
>>
>> >
>> > Pavel
>> >
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>> >
>> >
>
> --
> SQLAlchemy -
> The Python SQL Toolkit and Object Relational Mapper
>
> http://www.sqlalchemy.org/
>
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-- 
SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper

http://www.sqlalchemy.org/

To post example code, please provide an MCVE: Minimal, Complete, and Verifiable 
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