Description

MongoDB 3.6 had a breaking compatibility change: "If you run the aggregate command, you must include either the cursor option or the explain option."

Many examples don't appear to have been updated, leaving users to puzzle out what's wrong.

For example, in the documentation for the $unwind operator, the command:

db.inventory.aggregate( [ { $unwind : "$sizes" } ] )

fails with the error:

aggregate failed: {
{{ "ok": 0,}}
{{ "errmsg": "The 'cursor' option is required, except for aggregate}}
with the explain argument",
{{ "code": 9,}}
{{ "codeName": "FailedToParse"}}
}

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)