AtlasError when using $or: Insight on why is limited/unsupported

MongoDB Atlas
1

Hello,

I’ve read both https://docs.atlas.mongodb.com/reference/unsupported-commands/ and https://docs.atlas.mongodb.com/reference/free-shared-limitations/ as well as https://docs.mongodb.com/manual/reference/operator/aggregation/or/index.html and https://docs.mongodb.com/manual/reference/operator/query/or/index.html but I cannot understand why I’m given AtlasError below when there’s nowhere to be found that $or is limited/unsupported.

{
    "ok": 0,
    "errmsg": "$or is not allowed in this atlas tier",
    "code": 8000,
    "codeName": "AtlasError",
    "name": "MongoError"
}

Can anyone give me some insight as to why is that, when documentation doesn’t state that the operator is limited/unsupported?

Thank you

2

You do not provide enough context to understand your issue. What command or action were you doing when you got this error.

3

Inside an aggregate, one of the steps I added was $match with an $or inside.

4

Hi Raphael,

Can you provide an example of the aggregation pipeline you are executing and confirm the Atlas tier you are using?

Thanks,
Stennie

5

I first tried with:

coll.find({$or: [{_id: _id},{id: _id }]})

And I got the error. Then I tried on aggregate

			coll.aggregate([
				{
					$match: {
						$or: [{ _id: _id }, { id: _id }, { name: _id }],
					},
				},

And I got same error as well.

But oddly enough, I ran today again the aggregate just to make sure before replying and did not give me the error I posted on the first post, instead, it worked.
I’m using M0 Free Plan.

Maybe it had an issue on my end, I don’t know. O.o