You cannot do this as far as I know, it must be a numeric field (float/int/tint/tfloat whatever).
Best Erick On Thu, Sep 18, 2014 at 12:46 AM, YouPeng Yang <yypvsxf19870...@gmail.com> wrote: > Hi > > One of my filed called AMOUNT is String,and I want to calculate the > sum of the this filed. > I have try it with the stats component,it only give out the stats > information without sum item just as following: > > <lst name="AMOUNT"> > <str name="min">000000000000</str> > <str name="max">500000000000</str> > <long name="count">24230</long> > <long name="missing">26362</long> > <lst name="facets"/> > </lst> > > Is there any ways to achieve this object? > > Regards