Apologies to Guillaume for the duplicate reply, but I didn't hit "reply to all" the first time so didn't actually reply to the list. So here it is again (the first time).
>pgAdmin only shows the constraint. The fact that it's done with an >index >is an implementation detail So creating another index on the column with the 'unique' constraint is redundant I take it. It would seem to me that this "implementation detail" is unnecessarily obscure/confusing. But that is with postgresql, not pgamin. To add to my first reply, I have noticed confusion WRT this from others on the web when trying to gain insight searching the web. So I know it's not just me. If creating another index is redundant, then I suspect there are a lot more redundant indexes out there because of the way this is implemented. But again, that is with Postgresql. Thanks, BillR -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.