Full-Text Search

Langfuse Cloud is rolling out ClickHouse full-text search, improving UI search and adding the matches operator to Observations API v2.

Large input/output searches that took 18 seconds and scanned 494 GB now return in under half a second and read less than a gigabyte. Metadata-heavy queries dropped from 1.6s to 0.2s. The UI gets faster for humans hunting a bug, and the new matches operator on Observations API v2 gives agents and scripts the same token-based search programmatically.

Built on top of ClickHouse's new full-text search release.