On 10/29/2016 09:47 AM, Rich Shepard wrote: > 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. http://stackoverflow.com/questions/5628533/what-does-i1-i2-u1-means-in-visio-database-relationship-diagram http://stackoverflow.com/questions/23533702/about-entity-relationship-diagram > > Thanks, > > Rich > > -- Adrian Klaver adrian.klaver@aklaver.com
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