Thom Brown <thom@linux.com> writes:
> On 17 March 2014 12:44, Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
>> "iff" was discussed in pg-hackers a fortnight ago or so. In this
>> particular case I don't think "iff" rather than "if" added too much to
>> the sentence, though, so I think it's fine as it is.
> Could you elaborate, for my sake?
"iff" is a standard abbreviation for "if and only if".
regards, tom lane