Caution

Grafana Agent has reached End-of-Life (EOL) on November 1, 2025. Agent is no longer receiving vendor support and will no longer receive security or bug fixes. Current users of Agent Static mode, Agent Flow mode, and Agent Operator should proceed with migrating to Grafana Alloy. If you have already migrated to Alloy, no further action is required. Read more about why we recommend migrating to Grafana Alloy.

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]]