I am trying to create a unique index but it’s erroring because of duplicate documents I currently have. I have about 400,000 documents, and I need to remove all duplicates using the id field. What’s the easier/most efficient way to accomplish this? I see there’s no longer dropdups.
Could you please confirm if you are using a script to generate id field such that duplicate data is created for the collection for id field?
Since the _id from MongoDB are always unique and hence, duplicate data entry is not allowed on _id field.
Please refer to the documentation here ObjectId
Also, could you please provide a sample dummy document or a sample schema so that we could assist you with better solution.