--- title: "Introducing Lightstep UQL to PromQL Translator" url: https://daily.dev/posts/introducing-lightstep-uql-to-promql-translator-ozegzuaxp source_url: https://engineering.zalando.com/posts/2026/06/introducing-lightstep-uql-to-promql-translator.html type: article source: "Zalando" published: 2026-06-08T09:43:29.791Z updated: 2026-06-08T09:43:51.211Z tags: ["golang", "observability"] reading_time: 4 upvotes: 1 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Introducing Lightstep UQL to PromQL Translator **[Zalando](https://daily.dev/sources/zalando)** · 4 min read · 1 upvotes · 0 comments ## Summary Zalando open-sourced a Go-based tool that automatically translates Lightstep UQL queries to PromQL, addressing the challenge of migrating thousands of telemetry queries, dashboards, and alerts as Lightstep sunsets. The translator implements a full parsing pipeline (lexer, parser, AST, optimizer) and is available as both a Go SDK for embedding in CI pipelines and automation tools, and as an HTTP server with a Web UI for interactive ad-hoc translation. Zalando used it internally to migrate to Dash0, their new PromQL-based observability vendor, saving weeks of manual engineering work and eliminating translation errors that LLM-based approaches introduced. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Metrics Query Builder with PromQL-support](https://daily.dev/posts/metrics-query-builder-with-promql-support-dsbu4s59q) · Last9 · 2 upvotes · 0 comments --- Tags: [#golang](https://daily.dev/tags/golang), [#observability](https://daily.dev/tags/observability) [View this post on daily.dev](https://daily.dev/posts/introducing-lightstep-uql-to-promql-translator-ozegzuaxp)