Andres Freund <andres@anarazel.de> writes:
> On 2015-05-20 13:31:57 -0400, Tom Lane wrote:
>> If you can't use an exclusion constraint to support the command,
>> then the error message shouldn't be worded like that.
> But you *can* use a exclusion constraint for DO NOTHING. Just not (yet)
> for DO UPDATE.
Hm. Maybe it would be worth having two different message texts for
the two cases, then?
regards, tom lane