On 9-11-2018 22:51, Michal Kurczabinski [email protected] [firebird-support] wrote: > First thought: > > range/rows between unbounded preceding and unbounded following / > current row, etc..
Will be added in Firebird 4 (already present in the Firebird 4 Alpha 1). > own aggregate functions in conjunction with window functions, There was a discussion about it on firebird-devel back in September/October, but I don't think there was anything conclusive yet. > list(column) over ... list does work as a window function, just not with an order by clause (that produces: feature is not supported, LIST is not supported in ordered windows); I'm not sure why it isn't supported for ordered windows though. Mark -- Mark Rotteveel
