database-internals

Prototype implementations of database internal concepts and algorithms in Golang.

An eBPF based query planning tracer for PostgreSQL

Real-time PostgreSQL WAL reader built in GO - captures INSERT, UPDATE, DELETE using logical replication

Database internals, measured: 57 topics of guided paper and code reading with runnable Rust benchmarks — plus a graph engine rebuilt from scratch.

Distributed SQL database in Rust, written as a learning project about my journey on the database and rust.

A SQL database written from scratch in Rust.

CLI diagnostic tool showing step-by-step how Delta Lake prunes files given a predicate

A small relational database forked from http://research.cs.wisc.edu/coral/mini_doc/minibase.html

PostgreSQL extension to debug table scans. The extension is intended to illustrate MVCC in PostgreSQL.

GUI viewer for MySQL InnoDB tablespace files: inspect the page structure of .ibd and ibdata1

Internals de bases de datos en Rust para Jeresoft Academy: B-Tree, LSM, índices, transacciones, MVCC, WAL y recovery.

Key-value storage engine: Bitcask evolved to an LSM-tree with WAL, SSTable compaction, bloom filters, CRC32 recovery

A SQL database hewn from bedrock — built from scratch in Rust. Custom LSM engine, WAL journal, page cache, and SQL execution. Speaks the Postgres wire protocol. A craft project, every layer built on my own terms.

A source-backed, Obsidian-browsable wiki for understanding PostgreSQL internals.

A custom relational/document database storage and query engine built from scratch exploring B-Trees, indexing, and disk persistence.

trying to learn DB internals by building a simple storage engine

A minimal educational relational database management system (RDBMS) implemented in Java 17. The project demonstrates a custom SQL processing pipeline, including lexer, parser, semantic analysis, query planning, optimization, and execution. It features a storage engine with heap pages, a buffer pool, and supports indexing using B-trees and Hash

A B+ Tree based storage engine.

A high-performance, persistent B+ Tree implementation in Rust featuring a pluggable storage engine architecture. Built for durability and extensibility, it supports custom block storage backends, unified node structures, and atomic writes for crash safety. Ideal for building custom databases, metadata indexes, or embedded key-value stores.

9.3M ops/sec concurrent financial ledger engine in Go. Features a proven deadlock-free sharded mutex architecture, group-commit asynchronous WAL persistence, token-bucket rate limiting, and real-time mathematical audit workers.