renameCollection command

jstests/rename2.js

@@ -0,0 +1,19 @@
+
+
+a = db.rename2a;
+b = db.rename2b;
+
+a.drop();
+b.drop();
+
+a.save( { x : 1 } )
+a.save( { x : 2 } )
+a.save( { x : 3 } )
+
+assert.eq( 3 , a.count() , "A" )
+assert.eq( 0 , b.count() , "B" )
+
+assert( a.renameCollection( "rename2b" ) , "the command" );
+
+assert.eq( 0 , a.count() , "C" )
+assert.eq( 3 , b.count() , "D" )

shell/collection.js

@@ -294,6 +294,10 @@ DBCollection.prototype.drop = function(){
     return this._db.runCommand( { drop: this.getName() } );
 }
 
+DBCollection.prototype.renameCollection = function( newName ){
+    return this._db._adminCommand( { renameCollection : this._fullName , to : this._db._name + "." + newName } ).ok;
+}
+
 DBCollection.prototype.validate = function() {
     var res = this._db.runCommand( { validate: this.getName() } );