Re: Unique Constraints using Non-Unique Indexes - Mailing list pgsql-hackers

On Thu, 2008-03-20 at 17:38 +0000, Gregory Stark wrote:
> I don't immediately see any problems aside from reduced concurrency 

Agreed. The index would need to be nearly unique in most cases to make
it sensible. But that's a common situation in complex data models.

--  Simon Riggs 2ndQuadrant  http://www.2ndQuadrant.com 
 PostgreSQL UK 2008 Conference: http://www.postgresql.org.uk