2008/9/2 Gregory Stark <stark@enterprisedb.com>:
> And it doesn't answer how to deal with things like
>
> SELECT lag(x,1) OVER (ORDER BY a), lag(x,1) OVER (ORDER BY b)
>
> I, uh, don't actually have any ideas of how to deal with that one :(
For different windows we make different window nodes with different
sort nodes as the patch does.
Regards,
--
Hitoshi Harada