On Mar 24, 2005, at 10:38 PM, Christopher Kings-Lynne wrote:
>> In that case there's a datatype mismatch between the referencing and
>> referenced columns, which prevents the index from being used for the
>> FK check.
>
> Is creating such a foreign key a WARNING yet?
>
I recall getting such a warning when importing my schema from a 7.4 to
8.0 server. I had one table with char and the other with varchar.