Re: <no subject>

On Wed, 2003-10-01 at 11:32, Daniel Schuchardt wrote:
> Read the docs...
>
> Hm looking towards the doks thats the right behavoir. Also from the
> logical point thats the right behavoir. But I don't like it. The CAST
> should return an empty string in that case (looking from the practical
> standpoint).

All CAST is doing is changing the type of the datum; it does not change
its value except perhaps as a side effect. A null string is not the
same as an empty string. I don't at all see why you should expect
anything different, especially when the COALESCE() function is already
provided to do exactly what you want.

--
Oliver Elphick Oliver(dot)Elphick(at)lfix(dot)co(dot)uk
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