libmdbx

libmdbx is a embedded transactional key-value DBMS derived from LMDB.

Website: https://abf.io/erthink/libmdbx[01]
Source Code: https://abf.io/erthink/libmdbx[01]
Developer: Positive Techlologies
Country of Origin: RU
Start Year: 2015 [03]
Project Type: Open Source
Derived From: LMDB
License: OpenLDAP Public License

libmdbx

libmdbx is a embedded transactional key-value DBMS derived from LMDB.

History[02]

libmdbx started as a fork of LMDB in 2015. The source code repository was moved from Github to ABF in 2019 as a protest to international sanctions placed on Russia.

Concurrency Control

Multi-version Concurrency Control (MVCC)

Same as LMDB

Data Model

Key/Value

Same as LMDB

Indexes

B+Tree

Same as LMDB

Isolation Levels

Serializable

Same as LMDB

Joins

Not Supported

Same as LMDB

Logging

Shadow Paging

Same as LMDB

Parallel Execution

Intra-Operator (Horizontal) Inter-Operator (Vertical)

Same as LMDB

Query Compilation

Not Supported

Same as LMDB

Query Execution

Tuple-at-a-Time Model

Same as LMDB

Query Interface

Custom API

Same as LMDB

Storage Architecture

In-Memory

Same as LMDB

Storage Model

Custom

Same as LMDB

Stored Procedures

Not Supported

Same as LMDB

System Architecture

Shared-Everything

Same as LMDB

Views

Not Supported

Same as LMDB

Citations

3 sources

Project erthink/libmdbx at master - ABF abf.io Accessed: 2026-06-04
mdbx: update README. Change-Id: Iaacc035917e42fea7266a6cd3ec2e0cc4eee41cb github.com Modified: 2019-12-07 Accessed: 2026-05-30
OpenLDAP 2.4.40 - 27a2bfaa10 - Project erthink/libmdbx - ABF abf.io Accessed: 2026-06-07

Revision #3 Last Updated: 2026-06-02 23:14