Sort order by index?

[uhop]

I am selecting objects by some criteria, and want to return them in a reverse chronological order. How to do that? I don't see how I can specify a field or an index for that.

[jdduncan]

Query can sort for you, but only in the case of an ordered index scan. So if you have an index on the timestamp, and that index is the one being used to execute the query, then you can add { "order" : "desc" } to the queryParameters and they will be sorted for you. Otherwise you have to do the sorting yourself.