DMEDIAN function

[so09 gmx de]

Dear developers,

please implement a DMEDIAN database function.

Daverage, Dmax, Dmin are already implemented. Dmedian would come very 
handy for processing non-normal data (maybe even Dquartile and/or 
Dpercentile).

Is this a reasonable request for short/medium term implementation?

Thank you
Soeren