Menu
Caution
Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.
Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Open source
concat
The concat function concatenates one or more lists of values into a single
list. Each argument to concat must be a list value. Elements within the list
can be any type.
Examples
> concat([])
[]
> concat([1, 2], [3, 4])
[1, 2, 3, 4]
> concat([1, 2], [], [bool, null])
[1, 2, bool, null]
> concat([[1, 2], [3, 4]], [[5, 6]])
[[1, 2], [3, 4], [5, 6]]Was this page helpful?
Related resources from Grafana Labs
Getting started with tracing and Grafana Tempo
In this webinar, we'll show you how to get started setting up Grafana Tempo, our open source, easy-to-use and high-volume distributed tracing backend.
GrafanaCON 2024 Keynote Recap
Catch up on GrafanaCON 2024 highlights! Explore Grafana 11 features, LGTM Stack innovations, and community achievements in this recap webinar.
Getting started with the Grafana LGTM Stack
In this webinar, we’ll demo how to get started using the LGTM Stack: Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics.