On Thursday, March 26, 2020 at 2:53:08 PM UTC-4, Mike Bayer wrote:
>
> is the issue that your follower database is only updating 
> asynchronously?   I would likely organize the application to simply use two 
> different Session objects, one for master one for follower.   Trying to do 
> it on a per-query basis is needlessly implicit and complicated.    
>

 In my applications, I have explicit Primary/Writer and Secondary/Reader 
sessions.  As a convenience, I will create a shortcut to proxy one of them 
onto a request(web)/context object as `.dbSession`.  Certain logic flows 
will only utilize the Primary/Writer, other logic flows will only utilize 
the Secondary/Reader.

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