mongodb remove all dates less than specified

Question

I have the following data.

{
    deviceID: 186,
    date: \"2014-3-15\"
}
{
    deviceID: 186,
    date: \"2014-3-14\"
}
{
    deviceID: 186,
    date: \"201         


        

Answer 1

Its because the date field you are querying on is a string filed and not a Date(). In your mongo documents instead of a custom date string, insert javascript date objects into date field.

like

{ deviceID: 186,,"date": new Date(2012, 7, 14) }

and when you execute the remove do it like

db.coll.remove({date:{$lte:new Date(2012, 7, 14)}})