Complex keys and ranges

[cdr53x]

Hello,

I've read all the docs/wiki again but cannot find anything related to 
views usage when keys are complex JSON objects.

Especially, there are no explanations nor examples of how the ranges ( 
startkey/endkey ) are supposed to behave with complex keys.

For instance let's presume we have the a view with the following map 
function :

function(doc) {
    ...
    emit({ 'date' : created_at  , 'author' : author}, null) ;
}


Would it be possible to "filter" on both date and author ?

For instance get all the docs created in a given time range by a given 
author , by passing a range like  :

  start_key : { 'date' : '201002030000.' , author : 'adams' }
  end_key   : { 'date' : '201003030000.' , author : 'adams' }

?

I have tried this however it does not seem to work that way, so if 
anyone has some info on how this should work, I'd really appreciate

Thanks in advance,

cdrx