telegraf/plugins/processors/unpivot/README.md

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# Unpivot Processor Plugin
You can use the `unpivot` processor to rotate a multi field series into single
valued metrics. This transformation often results in data that is more easy to
aggregate across fields.
To perform the reverse operation use the [pivot] processor.
## Global configuration options <!-- @/docs/includes/plugin_config.md -->
In addition to the plugin-specific configuration settings, plugins support
additional global and plugin configuration settings. These settings are used to
modify metrics, tags, and field or create aliases and configure ordering, etc.
See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
[CONFIGURATION.md]: ../../../docs/CONFIGURATION.md#plugins
## Configuration
```toml @sample.conf
# Rotate multi field metric into several single field metrics
[[processors.unpivot]]
## Tag to use for the name.
tag_key = "name"
## Field to use for the name of the value.
value_key = "value"
```
## Example
```diff
- cpu,cpu=cpu0 time_idle=42i,time_user=43i
+ cpu,cpu=cpu0,name=time_idle value=42i
+ cpu,cpu=cpu0,name=time_user value=43i
```
[pivot]: /plugins/processors/pivot/README.md