Re: How to ensure that a stored function always returns TRUE or FALSE?

On Wed, Mar 2, 2016 at 5:39 AM, Alexander Farber <alexander(dot)farber(at)gmail(dot)com
> wrote:

> Thanks Vitaly, but instead of inverting the IF-condition I would prefer to
> make my function more robust, since it is kind of security-related and I
> might forget about the special IF-condition later when using it elsewhere...
>
>
​Merlin's point about inlining and SQL language functions not withstanding:​

You should consider writing a variation of the check_user function that
returns VOID or raises an exception and use is like an assertion.

​I would consider raising an exception if in_auth is NULL as I'd
potentially consider such a situation to represent mis-usage of the
function which should gets it own error instead of simply indicating that
the validation failed.
​
​David J.​