I'm using the Custom Fields plug-in and created a field of type Number. As an example, I set the value of this field to 1, 5, and 10 for 3 different bugs.
When I try to use the Filter UI to search for values "5 or higher" or "5 or lower", I only get the bug where my custom field equals exactly 5.
When I try to do the same thing via search axis, I get even worse results. customxfield:"5" gets me the bug with the field set to 5. customxfield:"..5" and customxfield:"5.." and customxfield:"1..5" (and other variations) get me no results whatsoever.
Is there a correct way for searching custom fields of type Number?