Re: E-R diagram code U1 - Mailing list pgsql-general

On Sat, 29 Oct 2016, Tom Lane wrote:

>>    What does U1 represent?
>
> Unique constraint, perhaps?  I'm just guessing.

Tom,

   That's my guess, too. I've not seen it used before now and did not know if
it's a standard code for something or one specific to this agency.

Thanks,

Rich