Re: Note on scalar subquery syntax

Kevin Murphy wrote:
> I thought this might be helpful in the future to other duffers such as
> myself.
>
> The following is my big contribution to the documentation of the use of
> scalar subqueries ;-):
>
> You have to wrap a scalar subquery in its own parentheses even where you
> might think it to be unnecessary, such as when the subquery is the sole
> argument to a function.
>
> As an example, I wrote a function to explode, or unpack, the elements of
> an array onto separate rows (its return type is SETOF whatever), but it
> took me a while to figure out how to use it effectively in queries.

Mind posting it?  I know I've had need of such I thing & IIRC others
have asked as well...