![]() Every field to be fetched as a result of the query is a part of the index.Every field in the query is a part of the index.These queries are called Covered Queries.įor an index to be covered, there are two conditions: If there is an index that can satisfy the query by using index-scans only, that's when we call this index Covered, as we no longer need any additional work for the query. Hashed indexes (index the hash values of specific fields to support hash-based sharding).įor us to get the best of indexes, there are some things to keep an eye on.Text index (string content in the collection). ![]()
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