dropIndex Method in MongoDB
The MongoDB dropIndex() method allows for the removal of specified indexes from a collection, but it does not permit the deletion of the default index of the _id field. Additionally, hidden indexes can also be dropped using this method.
Starting from MongoDB 4.4, if the specified index is still being built, the dropIndex() method will abort the building process of the index, providing developers with greater control over index management in MongoDB collections.
Note: Starting from MongoDB 4.2, you are not allowed to remove all the non-_id indexes using db.Collection_Name.dropIndex(“*”). If you want to do that then use db.Collection_Name.dropIndexes() method.
MongoDB dropIndex() Method
MongoDB dropIndex() method drops or deletes the specified index from the given collection. It takes only one parameter which is the index, that we want to drop and it is optional.
To find the index name or the index specification document for the dropIndex() method, use the getIndexes() method.
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