the previous parameter setting of cursor was incorrect, but now it has been modified:
:
Error: Arguments must be aggregate pipeline operators
want to know why there is an error in the first way. I think many examples are written in the middle of the earth
. there must be error messages. No, you console.log (JSON.stringify (err)) .
on the surface, it should be [{cursor: {batchSize: 10000}] this should be an object, not an array, without brackets.
the second parameter options is an object. Take a look at what the document says
should be written like this
guess that you are writing in mongoose,. The second way is correct.
the first is OK if it is db.collection.aggregate ().
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