Re: invalid operator: $elemMatch

[Rob Moore]

I just tried it and it worked with 2.2.0 copying directly from above into the console. 

Are you sure the version of the server you are running is 2.2.0?  I only ask because the error I get back for a bad operator includes a error 'code'.  Can you try the following to verify?

> db.serverStatus().version
2.2.0
> version()
version: 2.2.0

Rob.



On Friday, August 31, 2012 11:05:37 PM UTC-4, threecuptea wrote:

I am learning MongoDB and found that I got "invalid operator: $elemMatch" whenever I use $elemMatch in the query no matter I follow the example in "Seven Database in Seven Weeks" or following MongoDB Advanced Query tutorial.  The followings are excerpt.
> db.documents.insert( {
... Name: "name1",
... Identifiers: [
... { name: "manufacturer26", value: "abc123" },
... { name: "store5", value: "tty3" },
... { name: "factory3", value: "521" }
... ]
... } );
> db.documents.find( { "Identifiers": {$elemMatch: { name: "store5", value: "tty3" } } } );
error: { "$err" : "invalid operator: $elemMatch" }

I have the most recent version (2.2.0) of MongoDB.  Did I miss something?  How do I get it to work?
Thanks.