>> 2. How do I search for negative numbers in a range. For example >> field:[-3 TO >> 2] ? >> >> I don't mind hacking code such that my numbers are indexed as >> +00000001 and >> -00000001 and then I can override the query parser to change my >> query to >> [-0000003 TO +0000002]. However.. "+" is less then "-" in Ascii >> terms so a >> range search isn't going to work terrifically well.. Is there a >> standard >> approach?? > >You could leave the "+" off for positive numbers. That'd do the >trick, right? "-" < "0" lexicographically. > > Erik
Hi Erik, good point! Of course it still doesn't work because "-3" is greater then "-2" ! I've done something else where 0 is represented by 10000000000000000000 Any positive number has a "1" followed by the number left padded with zeroes to length 19 12345 is therefore 10000000000000012345 Any negative number has a "0" followed by (number - long.minvalue) left padded with zeroes to length 19 -12345 is therefore 09223372036854763463 This will work fine. Of course it got much more difficult with floating numbers where you have to mess around with a positive and negative mantissa and exponent. But it was doable. -g --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
