PeerDB

Fast, simple, cost-effective replication from Postgres to data warehouses, queues, and storage.

PeerDB is the company I co-founded with Sai Srirampur in 2023 (YC S23). It streams changes out of Postgres with logical replication and moves them to Snowflake, BigQuery, ClickHouse, Kafka, S3, and more, with parallel initial loads and a SQL interface for defining mirrors. ClickHouse acquired PeerDB in 2024; it now powers the Postgres CDC connector in ClickPipes.

Some of the engineering behind it:

Using Temporal to scale data synchronization at PeerDB
Building a streaming platform in Go for Postgres
Moving a billion Postgres rows on a $100 budget
Why every PeerDB Cloud tenant still gets a private Postgres