Re: Converting each item in array to a query result row

why complicate so much ? this is a single sql query. It really shocks
me, how people easily lean on plpgsql and for/loops - which are times
slower than simple sql query:

CREATE FUNCTION unnest(anyarray) RETURNS SETOF anyelement AS
$_$
SELECT ($1)[i] FROM generate_series(array_lower($1,1),array_upper($1,1)) i;
$_$
LANGUAGE sql IMMUTABLE;