Alvaro Herrera writes:
> Now that I think about it: it's in the column_constraint part of the
> definition! Shouldn't it only be in the table_constraint part? It
> doesn't make much sense.
"Sense" is something you're going to have to talk to the SQL standards
committee about. ;-) It's standardized, it's implemented, therefore it's
legal and documented. However, you're right in that it's rather useless.
--
Peter Eisentraut peter_e@gmx.net http://funkturm.homeip.net/~peter