Both are using postgres.  But I did try updating the bind to both the 
engine (db.engine) and the session (db.session) and it didn't have any 
affect.

On Monday, October 9, 2017 at 2:09:02 PM UTC-7, Jonathan Vanasco wrote:
>
> OTOMH (I didn't go through your code), are the two databases the same?
>
> If not, this is possibly related to database specific compiling (or the 
> lack of) and a common error.  Note the `bind` references in the docs: 
> http://docs.sqlalchemy.org/en/latest/core/tutorial.html#executing 
>  Depending on how you invoke a select, the statement will either be 
> compiled as a generic string or sqlalchemy knows that it should be 
> customized for the specific database.  Depending on the database, the 
> generic version will or will not work.  This might not be happening -- I 
> didn't go through your code -- but many situations of "It works when I ___ 
> but not when I ____" are related to this.
>

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