| From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
|---|---|
| To: | John Jawed <johnjawed(at)gmail(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Difference between UNIQUE constraint vs index |
| Date: | 2007-02-28 00:58:39 |
| Message-ID: | 45E4D3BF.4010107@commandprompt.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
John Jawed wrote:
> Is there any difference as far as when the "uniqueness" of values is
> checked in DML between a unique index vs a unique constraint? Or is
> the only difference syntax between unique indices and constraints in
> PostgreSQL?
They are functionally the same and unique constraint will create a
unique index.
Joshua D. Drake
>
> John
>
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