Kaushik Iska
Engineering Manager at ClickHouse
Kaushik Iska is a database systems expert and open-source contributor, specializing in PostgreSQL replication, distributed systems, and real-time data movement. He is the Co-founder and former CTO of PeerDB, a high-performance PostgreSQL replication system, which was acquired by ClickHouse. At ClickHouse, he leads database integrations, focusing on seamless real-time data replication from PostgreSQL to modern analytical platforms.
Kaushik has deep expertise in logical replication, Change Data Capture (CDC), and performance optimizations for large-scale data systems. He has contributed to open-source projects like PeerDB, ClickHouse, and Flutter, and has worked on high-impact distributed computing projects at Google and SafeGraph.
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Past presentations
Did you know that Logical Replication has four protocol versions, each adding more features to the Postgres Logical Replication protocol, from drastically impacting performance to supporting more complex SQL commands?
In this talk, we will take a deep dive into each of these protocol versions and explore the use cases where they make sense, from the perspective of both Postgres and an extern...
Mar 20 2025