Xapian discuss - Nov 2009 - help me please! Date range search support problem

dear all:
        hi! i am new user of Xapian. now i want to suuport search with date
range. something like  i want to search the pages of time span
"20090901...20090928" when i input 20090901 and 20090928 in the main
search
web. but now i am so confused of the code.could you please give me some
help? and thank you very much!
and my code is as follows:
            qp.set_default_op(Xapian::
Query::OP_AND);
            Xapian::Query query
qp.parse_query(StrQUERY_STRING);//StrQUERY_STRING is the key query terms.
            Xapian::Query range Xapian::Query(Xapian::Query::OP_VALUE_RANGE, 0,
StrTimeBegin,
StrTimeEnd);//StrTimeBegin and StrTimeEnd are the time span i input in
            enquire.set_query(query);
....


and when i run the program,the output is " parsed query is :
Xapian::Query((usa:(pos=1) FILTER VALUE_RANGE 0  ))"
that means the begin time and end time didn't transfer to the program.please
tell me how to do ? thank you very much!
best wishes!



caddie

On Fri, Nov 20, 2009 at 09:53:17PM +0800, Lingjuan Peng
wrote:
> and when i run the program,the output is " parsed query is :
> Xapian::Query((usa:(pos=1) FILTER VALUE_RANGE 0  ))"
> that means the begin time and end time didn't transfer to the
program.please
> tell me how to do ? thank you very much!
My guess is that the start and end of the range are encoded as strings of
non-printing characters.  Try piping the output through "cat -vet" to
show
them if they are.

If not, please post more complete code - ideally something I can run myself
and get the same output as you do.

Cheers,
    Olly