Ivan Prenosil wrote:

>>Is it true that you can't use a UDF inside a substring call? If so, why
>>not? Will it be changed so it works in newer releases?
>
> The restriction is not exactly with UDFs, because SUBSTRING
> can use only constants for its FROM/FOR arguments.
> This limitation is removed in FB2.

Oh, I see. Thank you!

Kjell
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