questions on query format

[Memory Makers]

Hi,

I've spent quite some time reading up on the query format and can't seem to
solve this problem:

1. If send solr the following query:
  q={!lucene}profile_description:*

  I get what I would expect.

2. If send solr the following query:
  q=*:*

  I get nothing just:
   <response><result name="response" numFound="0" start="0"
maxScore="0.0"/><lst name="highlighting"/></response>

Would appreciate some insight into what is going on.

Thanks.