create a new MongoDB collection with the same indexes as an existing collection

Uncategories create a new MongoDB collection with the same indexes as an existing collection

Create an empty collection and copy indexes

Step 1: Create the new collection

db.createCollection("newCollection");

Step 2: Copy all indexes

const indexes = db.oldCollection.getIndexes();

indexes.forEach(index => {

if (index.name !== "_id_") {

const { key, name, ...options } = index;

db.newCollection.createIndex(key, options);

}

});

This copies all indexes except the default _id index (MongoDB creates that automatically).