> More obvious if you drop a user defined type that a column was using. Or
> the functions that the user defined type depended on to import / export
> data then there is no method to insert or extract information from that
> column -- or more to the point any tuple within that table.
> 
> This is what CASCADE does.  Ensures the structure is clean much like
> foreign keys and constraints help keep data clean.
> 
> RESTRICT is there for those who don't fully understand the structure. 
> Cautiously test the waters to see what else you may be affecting first.


Yeah, I guess you're right!

Chris


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