MongoDB aggregate broken?

[rousseau]

Not sure if I've got the syntax quite right, but i'm just trying to do a simple grouping using the MongoDbQuery driver in iReport: e.g. to count the number of times something crashed for a particular reason

 

{
runCommand : {
    aggregate : 'crashlog',
    pipeline : [{
        $group : { _id : "$data.reason",
            count : { $sum : 1}
            }
    }]
    }
}

 

This gives the error: "Error: no such cmd: aggregate".

I'm using the latest mongodb driver (0.5.0).

/Steve

[rousseau]

Well I think I figured out the reason: its only supported in a newer version of the DB. Looks like we need to upgrade.