WalShadow: Sub-second Postgres replication to ClickHouse from physical WAL

Automated excerpt

Today, we’re announcing WalShadow, an open-source engine that replicates Postgres data to ClickHouse directly from physical WAL. Unlike traditional CDC based systems, WalShadow doesn’t use Postgres logical replication. WalShadow consumes the same WAL stream Postgres generates for physical replication and recovery.

Selected automatically from source text; not independently written or fact-checked. Read the original for full context.