ClickHouse 25.6 summer bonus: CoalescingMergeTree table engine

T1Covered by 1 source · first reported by Databricks / ClickHouse / DuckDB / Supabase / Neon / PlanetScale at 14 Jul 2025, 07:27 UTC

CoalescingMergeTree is a new table engine in ClickHouse 25.6 that consolidates sparse, append-only updates on disk. Ideal for IoT, ETL, and enrichment pipelines where data arrives in fragments over time.

iot

Sources

• T1ClickHouse 25.6 summer bonus: CoalescingMergeTree table engineDatabricks / ClickHouse / DuckDB / Supabase / Neon / PlanetScale14 Jul 2025, 07:27