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dolthub/dolt

Dolt is a version-controlled SQL database that integrates Git-like version control operations (branching, merging, committing) directly into a MySQL-compatible interface. It provides a comprehensive CLI and SQL API for managing database schemas, data, and metadata, while also supporting remote storage backends and replication. The system includes extensive tooling for performance benchmarking, CI workflows, and administrative tasks, all built on a modular Go architecture.

60.7

Adequate · 6 August 2026

2.3k

lines of production code

Go

primary language

7

bus factor · 192 authors in all

2

measurements over time

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How it got here

2015–2019 · Dolt 1.0 and infrastructure overhaul

This period marks the release of Dolt 1.0, introducing Git-like version control for SQL databases alongside the DoltHub ecosystem. The codebase underwent a massive architectural refactoring, including a new CLI argument parsing system, structured error handling, and a modernized storage layer with FlatBuffers and NBS improvements. Additionally, the project expanded its data import/export capabilities and established robust testing and utility frameworks.

84 changes

2020–2022 · Prolly tree storage and SQL engine refactoring

This period focused on the foundational shift to the Prolly tree storage format, introducing new data structures for tables, indexes, and commit history. The SQL engine was refactored to support these changes, adding new system tables, stored procedures, and expression evaluation logic. Concurrently, the codebase expanded its testing and performance benchmarking capabilities to validate the new storage layer and compatibility with external clients.

80 changes

2023–2026 · CI, utility refactoring, and memory management

This period focused on establishing a robust CI workflow via the new 'dolt ci' command and expanding test coverage for compatibility and corruption scenarios. The team also introduced a suite of Go utility packages for concurrency, configuration, and system management, while refactoring core components like the table editor and schema compatibility checks.

61 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 6 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit a995f245c0 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
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