Dolt is a relational database engine that integrates version control directly into the database management layer. It functions as a version-controlled SQL database that tracks every row and schema change using a commit-based history, allowing users to branch, merge, and audit data modifications. By implementing a wire-protocol-compatible server, the system enables standard SQL clients and tools to interact with versioned data as if they were connecting to a traditional relational database.
The platform distinguishes itself by applying repository-style workflows to data management, including support for forking, pull requests, and issue tracking. It utilizes a Merkle-tree-based storage engine to calculate structural and row-level differences between database states, surfacing merge conflicts as queryable relational tables. This architecture allows teams to isolate experimental changes in branches and maintain a tamper-evident history of all modifications that can be queried via SQL.
Beyond its core versioning capabilities, the system provides comprehensive infrastructure for data engineering, including remote synchronization, replication, and automated workflow triggers. It supports standard SQL query execution and data import from common file formats, while offering granular access control and role-based permissions to secure database states. The software is designed to operate as a drop-in replacement for existing database environments, maintaining compatibility with standard drivers and management tools.
