Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz>,
David G Johnston <david(dot)g(dot)johnston(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
On 06/09/2014 09:06 AM, Gavin Flower wrote: > From memory all unique keys can be considered 'candidate primary keys', > but only one can be designated 'the PRIMARY KEY'.