Tom Lane wrote:
"Merlin Moncure" <[EMAIL PROTECTED]> writes:
On 10/18/07, Tom Lane <[EMAIL PROTECTED]> wrote:
generate_array_subscripts() maybe?

array_to_set or array_expand seem a little better imo (shorter, and
symmetry with array_accum()), unless you want to differentiate between
internal funcs (array_cat and the like) vs. user funcs.

I don't much like either of those, because they seem misleading:
what I'd expect from a function named that way is that it returns
the *elements* of the array, not their subscripts.

Come to think of it, do we have a way of doing that directly?  If you
only care about accessing the array elements, it seems like dealing in
the subscripts is just notational tedium.  Perhaps there should be
array_expand(anyarray) returns setof anyelement, in addition to the
subscript generation function.

I think what you're describing is the SQL2003 UNNEST feature.


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