>> Using arrays makes it a little less verbose and easier to manage IMO.
>>
>> SELECT v FROM unnest(array['a','b','c','d']) v
>>
>
> Is that 8.4? or is unnest from contrib/ ?
>
> thanks!
>
> Dave
Unnest is included in 8.4, but it's pretty much essential for working
with arrays. Pre 8.4, you'd add the function like so
CREATE OR REPLACE FUNCTION unnest(anyarray)
RETURNS SETOF anyelement AS
$BODY$
SELECT $1[i] FROM
generate_series(array_lower($1,1),
array_upper($1,1)) i;
$BODY$
LANGUAGE 'sql' IMMUTABLE STRICT