What are the key differences in indexing concepts between relational databases and MongoDB?

A database index is a special data structure that provides faster access to data and helps create highly performant applications. Indexes ... Indexes support efficient execution of queries in MongoDB. Without indexes, MongoDB must scan every document in a collection to return query results. Jan 19, 2021 ... TTL indexes are special single-field indexes that MongoDB can use to automatically remove documents from a collection after a certain amount of ... https://github.com/jeapostrophe/mongodb/tree/master/db/mongodb/mongodb.scrbl. Refer to Indexes for more details on indexing. procedure. (mongo-collection-index! The script also creates a geo index on the geometry field of the data ... indexed in MongoDB geospatial indexes. You can use these indexes to search ... Jan 6, 2025 ... Optimize Index Size: Regularly monitor and optimize the size of your indexes. Use MongoDB's built-in tools to calculate the total index size ... MongoDB provides text indexes to support text search of string content. Text indexes can include any field whose value is a string or an array of string ... Unique indexes ensure that the indexed fields do not store duplicate values. By default, MongoDB creates a unique index on the _id field during the creation of ... Mongoose will emit an index event on the model when indexes are done building or an error occurred. // Will cause an error because mongodb has an _id index by ... dropIndex is a Change Type in the Liquibase Open Source and Liquibase Pro extensions for MongoDB that drops an index for a collection by its keys.