Tom Lane wrote: > Bruce Momjian <br...@momjian.us> writes: > > + Exclusion constraints ensure that if any two rows are compared on > > + the specified columns or expressions using the specified operators, > > + at least one of these operator comparisons will be false. The syntax > > is: > > Isn't that phrasing outright incorrect? Consider nulls.
Well, doesn't a comparison returning null really behave as false? Should I reword it as "not true" or "false or null"? -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
