BasuyuDB

One binary. PostgreSQL wire. Branch your schema per PR.
SQL JOIN your observability data. ANN vector + BM25 full-text search in the same query.
Three continents, one transaction boundary.

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BasuyuDB is a distributed, multi-model database engine. It stores data natively in BadgerDB (pure Go, embedded LSM-tree), speaks the PostgreSQL wire protocol, replicates over Raft, and unifies relational, observability, vector, and full-text data behind one SQL surface — replacing PostgreSQL + Elasticsearch + Pinecone + ClickHouse with a single, zero-CGo, distroless binary.

Name origin: BadgerDB (storage) · SurrealDB (multi-model) · YugabyteDB (distributed SQL).

The query no other database runs in one statement against one engine

-- Correlate an error span to the user who triggered it and what they were charged.
SELECT s.trace_id, s.duration_ms, s.attributes ->> 'amount' AS amount, u.email
FROM   otel_spans s
JOIN   users u ON u.id = s.attributes ->> 'user_id'
WHERE  s.status = 'ERROR';

Capabilities

Capability	How
PostgreSQL wire v3	Connect with psql, Prisma, Drizzle, pgx, psycopg2 — standard connection string
Relational SQL	CREATE TABLE, INSERT, SELECT … WHERE, UPDATE, DELETE, JOINs
Branch-per-PR	CREATE BRANCH feature FROM main (O(1)) · copy-on-write reads · MERGE BRANCH … INTO main
OTel JOIN	OTLP gRPC ingestion → otel_spans, JOIN-able with relational data via JSONB ->>
Distributed consensus	3-node Raft (dragonboat) — forms, replicates, survives leader failure
Snapshot isolation	Percolator-style transactions over a managed-mode hybrid-logical-clock timestamp model
Vector search	HNSW — ANN with L2 / cosine / inner-product metrics
Full-text search	BM25 — ranked search, score predicates

Quick start

# Build (pure Go, zero CGo)
cd engine && CGO_ENABLED=0 go build -o basuyudb ./cmd/basuyudb

# Run locally (dev-mode trust auth)
BASUYUDB_DEV_MODE=true BASUYUDB_DATA_DIR=/tmp/basuyudb ./basuyudb

# Connect with any PostgreSQL client
psql -h localhost -p 5432 -U dev -d myapp -c "SELECT version();"

Build details and architecture: engine/. Kubernetes (K3s) deployment: deploy/helm/basuyudb.

Build & test

cd engine
CGO_ENABLED=0 go build ./...          # build / lint (zero CGo)
CGO_ENABLED=1 go test -race ./...     # race detector requires CGo
CGO_ENABLED=0 go test ./...           # functional tests

Deploy (K3s)

helm install basuyudb deploy/helm/basuyudb --set replicaCount=3

3-node StatefulSet on local NVMe (local-path), PodDisruptionBudget (minAvailable: 2), required anti-affinity, init-container lock cleanup, 90s graceful termination.

Licence

Apache-2.0. No BSL / AGPL / SSPL dependencies.