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2026-10-02

ClickHouse21:27

What is direct I/O, and why does ClickHouse Managed Postgres use it for backups?

ClickHouse Managed Postgres uses direct I/O and stripe-sized reads to keep backups fast while protecting the page cache and query latency.

2026-09-23

ClickHouse08:00

ClickHouse release 26.9

ClickHouse 26.9 introduces conditional LIMIT boundaries, incremental refreshes for append-only materialized views, disk spilling for DISTINCT, time-limited tokens, and faster min/max/count queries.