> show collections
contact
fs.chunks
group
system.indexes
system.profile
> db.group.stats()
Thu Sep 15 12:38:48 TypeError: db.group.stats is not a function (shell):1
> x=db.getCollection("group")
platform_addressbook.group
> x.stats()
{
	"ns" : "platform_addressbook.group",
	"count" : 15863,
	"size" : 1899448,
	"avgObjSize" : 119.74078043245288,
	"storageSize" : 2531584,
	"numExtents" : 5,
	"nindexes" : 3,
	"lastExtentSize" : 1900544,
	"paddingFactor" : 1.0099999999999996,
	"flags" : 0,
	"totalIndexSize" : 3268608,
	"indexSizes" : {
		"_id_" : 1171456,
		"userId_1_type_1" : 1171456,
		"userId_-1_name_-1" : 925696
	},
	"ok" : 1
}
>
> db.group
function (parmsObj) {
    var ret = this.runCommand({group:this._groupFixParms(parmsObj)});
    if (!ret.ok) {
        throw "group command failed: " + tojson(ret);
    }
    return ret.retval;
}