search in lucen

[haipeng du]

I index a field like:
document.add(Field.Text("docId", "1"));
document.add(Field.Text("other", "other property" ));
every thing is ok when I index this document. But when I search by query : 
query="docId:1" ; or query="docId:\"1\""; I can get any result back. But If 
I use query="other:\"other property\""; I can get this document back and 
docId field is 1.
What is problem of my index?
-- 
Haipeng Du
Software Engineer
Comphealth, 
Salt Lake City