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Kolmos
Native PostgreSQL Wire Protocol (Port 5432)

PostgreSQL Simplicity.
Columnar Storage Economics.

Connect existing Postgres applications with zero code refactoring. Enjoy sub-second vectorized analytical queries and cut cloud database storage bills by up to 90% on Cloudflare R2.

Start Free Postgres InstanceView Performance Benchmarks
Port 5432
Native pgwire listener
85% – 90%
Storage cost reduction
Apache DataFusion
SIMD vectorized execution
Zero Egress
Stored on Cloudflare R2
Drop-In Integration

Works Out of the Box with Your Stack

Replace your existing connection string. No custom SDKs, proprietary binaries, or ORM adapters required.

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

// .env
DATABASE_URL="postgres://user:password@cloud.kolmos.dev:5432/analytics_db?sslmode=require"
Architectural Fidelity

PostgreSQL Feature Support Matrix

Kolmos bridges relational transactional workflows with modern analytical storage formats.

Connection Protocol

100% Native

Standard PostgreSQL v3.0 Extended Protocol (Parse, Bind, Execute, Sync) handled via pgwire crate.

Port & Transport

Standard Port 5432

TLS v1.3 encryption, standard authentication, works through any firewall and VPC peering.

DDL Operations

Full Support

CREATE TABLE, DROP TABLE, ALTER TABLE, CREATE VIEW, schemas, and typed primary keys.

DML Mutations

ACID Logging

INSERT, INSERT ... RETURNING, SELECT, UPDATE, DELETE, and transactional boundaries (BEGIN / COMMIT).

Analytical Execution

Vectorized SIMD

Apache DataFusion 54.1 evaluates aggregates, window functions, and joins directly in Arrow memory.

Storage Plane

Cloudflare R2 / S3

Zero egress fee object store ($0.015/GB/mo) backed by automated formula & prototype compression.

Cost Anatomy: AWS Aurora vs Kolmos

Storage costs for a 2 TB analytical dataset over a 12-month period.

Metric / Capability
AWS Aurora PostgreSQL
Kolmos Cloud Database
Storage PlaneAWS Aurora Distributed Block StorageCloudflare R2 Object Storage
Storage Rate$0.10 / GB / month$0.015 / GB / month (6.6× cheaper)
Compression Efficiency1.0× (Raw Postgres Row Pages)3.5× – 4.0× (Formulas & Prototypes)
Data Egress Cost$0.09 / GB transferred$0.00 (Zero Egress Fees)
Total 1-Year Storage Bill (2 TB)$2,400.00 / yr$90.00 / yr (96% Savings)

Frequently Asked Questions

Do I need to change my application code or ORM queries?

No. Kolmos natively implements the PostgreSQL wire protocol on port 5432. You only change your DATABASE_URL connection string in your environment file. Prisma, Drizzle, SQLAlchemy, Hibernate, and Django connect identically as they would to Amazon RDS or Aurora.

How does Kolmos offer up to 90% storage savings over AWS Aurora PostgreSQL?

Traditional Postgres stores row-oriented pages on expensive block storage (AWS EBS at $0.08–$0.12/GB/mo plus IOPS). Kolmos translates data into compact columnar segments (.ksf) using mathematical formulas and prototype clustering, then persists them to Cloudflare R2 ($0.015/GB/mo) with zero data egress fees.

How fast are point lookups like 'SELECT * FROM users WHERE id = ?'?

Kolmos builds in-memory primary-key Bloom filter sidecars for each segment. Point lookups probe the filter in ~240 microseconds, prune 99% of segments, and complete in 2–4ms end-to-end.

Ready to cut your PostgreSQL storage costs?

Get started in 60 seconds with your existing Postgres connection strings.

Create Free Instance