1 2 3 4 5 6 7 8
--!syntax_pg select x,y,sum(x) over w from (values (1,2),(null::int4,3),(2,4),(2,5)) as a(x,y) window w as (); select x,y,sum(x) over w from (values (1,2),(null::int4,3),(2,4),(2,5)) as a(x,y) window w as (order by y);