Re: Difference between UNIQUE constraint vs index - Mailing list 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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