On Mon, 19 Dec 2022 at 17:57, Corey Huinker <corey.huin...@gmail.com> wrote:

>
> Attached is my work in progress to implement the changes to the CAST()
> function as proposed by Vik Fearing.
>
> CAST(expr AS typename NULL ON ERROR)
>     will use error-safe functions to do the cast of expr, and will return
> NULL if the cast fails.
>
> CAST(expr AS typename DEFAULT expr2 ON ERROR)
>     will use error-safe functions to do the cast of expr, and will return
> expr2 if the cast fails.
>

Is there any difference between NULL and DEFAULT NULL?

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