Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com> writes:
> If you look in contrib of the source, there is a set of
> array operators(functions) including element in set.
> That'll probably do what you want (you don't do an in
> actually, it'll be like <elem> <op> <array column>)
The array stuff is pretty simplistic at the moment, and could be taken
a lot further if there were someone who wanted to work on it.
(hint hint)
regards, tom lane