Hm. I enabled strict mode, and sure enough the warning turns into an 
exception. 

Alas, it seems that the flush() in the above example does not cause the 
exception, it happens later when the query executes. I was looking for a 
way to preempt that exception: the code runs within a view function of a 
Pyramid view handler which commits the transaction outside of the view 
function.

Looks like a manual check is needed :-)


On Friday, November 3, 2017 at 12:04:54 PM UTC+10, Mike Bayer wrote:
>
> the most appropriate way is to set strict SQL mode on your MySQL database: 
>
> https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sql-mode-strict 
>   
>

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