# PostHog replaces DuckDB warehouse with Trino and its own table format

_Published Monday, November 2, 2026 at 12:48 PM EST · Infrastructure, Products · Latest · Tier 2 — Notable_

![PostHog replaces DuckDB warehouse with Trino and its own table format — Primary](https://d36j3rcgc2qfsv.cloudfront.net/blogmoving-off-duckdb.jpeg)

PostHog says it has rebuilt its warehouse around a customized version of Trino and its own HogLake table format after customers' workloads exceeded its DuckDB architecture. The company says single-node workers required advance sizing, while larger instances and disk expansion made complex queries too costly or slow.

Its internal DuckLake deployment held about 2 PB when it moved off the system. PostHog says it tested the replacement at its own petabyte scale before handing it to design partners.

## Sources

- [posthog.com](https://posthog.com/blog/moving-off-duckdb)

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Canonical: https://techandbusiness.org/newswire/yQkNYhkaJEd_CaakXvq88W
Published: 2026-11-02T17:48:29.906Z
Story chronology: 2026-11-02T16:02:26.000Z
Retrieved: 2026-11-02T20:30:23.384Z
Publisher: Tech & Business (techandbusiness.org)