unregister-pattern soe...@gmail.com
On Thu, Oct 10, 2013 at 3:23 PM, Craig R. Skinner <skin...@britvault.co.uk>wrote: > On 2013-10-08 Tue 18:04 PM |, Craig R. Skinner wrote: > > Hi folks, I'm new here. I hope this is the correct list.... > > > > While creating a database of customer subscribed services with > > DNS domains, I want to: > > *) enable customers to subscribe to multiple services > > *) each service can have multiple domain names per customer > > *) a domain name must be unique per customer per timestamp > > > > Probably (!!) solved by using a tstzrange exclusion constraint: > > http://dba.stackexchange.com/questions/51280/many-to-many-link-tables-with-history > > > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql >
