Re: "RETURNING PRIMARY KEY" syntax extension - Mailing list pgsql-hackers

On 09/06/14 23:42, Vik Fearing wrote:
> 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'.
> Almost.  Candidate keys are also NOT NULL.
Yeah, obviously!
(Except, I did actually forget that - me bad.)