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

UpdateSep 10, 2026VerifiedAdded Sep 22, 2026

WalShadow replicates Postgres data directly from physical WAL into ClickHouse, delivering around 200 ms latency and 289,000 rows per second in benchmarks.

Data integration Postgres Performance

Read ClickHouse's release notes

https://clickhouse.com/blog/introducing-walshadow

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