Does MongoDB use B-tree?

Do databases use B trees?

A B-tree is a tree data structure that keeps data sorted and allows searches, insertions, and deletions in logarithmic amortized time. Unlike self-balancing binary search trees, it is optimized for systems that read and write large blocks of data. It is most commonly used in database and file systems.

Which search algorithm does MongoDB use?

Yes, mongoDB use b-tree, documentation: An index is a data structure that collects information about the values of the specified fields in the documents of a collection.

Does MySQL use B+ tree?

MySQL uses both BTREE (B-Tree and B+Tree) and HASH indexes.

Does MongoDB use LSM tree?

The WiredTiger technology was designed in a way to employ both B-Tree and LSM advantages making it sophisticated and the best storage engine for MongoDB. IT is actually MongoDB's default storage engine.