Ian Barwick writes:
> "Casting integers to boolean (for example, 0::bool) is no longer allowed,
> use '0'::bool instead".
This advice would probably only cause more confusion, because we are now
moving into the direction that character strings are no longer acceptable
as numeric data.
Note that
x <> 0
is also a perfectly good way to convert integers to booleans, and a more
portable one at that.
Finally, you can always create your own cast.
--
Peter Eisentraut peter_e(at)gmx(dot)net