On 12-09-15 22:12, Aurel Wisse wrote: > @Luuk : I tried your query and I cancelled after 9 minutes when it wasn't > finished. > yes, it was/IS bad...
i should stick to non-recursive queries
select
s1.calc_date,
(select min(s2.calc_date)
from securities s2
where s2.calc_date>s1.calc_date)
from securities s1
order by s1.calc_date;

