"range" : {
    "price" : {
        "gt" : "2014-11-24",
        "lt" : "2014-11-26"
    }
}

"range" : {
    "price" : {
        "eq" : "2014-11-25"
    }
}

"range" : {
    "price" : {
        "gt" : "now-2d",
        "lt" : "now"
    }
}