Fabien COELHO wrote:

> Note that this is already available indirectly, as show in the 
> documentation.
>   SELECT some-boolean-expression AS okay \gset
>   \if :okay
>     \echo boolean expression was true
>   \else
>     \echo boolean expression was false
>   \endif

Yes, the question was whether we leave it as that for v10,
or if it's worth a last-minute improvement for usability,
assuming it's doable, similarly to what $subject does to backtick
expansion for external evaluation.

Best regards,
Daniel Vérité
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Twitter: @DanielVerite

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