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Docs: Update filter-variables-with-regex.md (#29508)

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Diana Payton 2020-12-01 14:51:06 -08:00 committed by GitHub
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docs/sources/variables/filter-variables-with-regex.md
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@ -78,6 +78,8 @@ demo.robustperception.io:9100
## Filter and modify using named text and value capture groups ## Filter and modify using named text and value capture groups
> **Note:** This feature is available in Grafana 7.4+.
Using named capture groups, you can capture separate 'text' and 'value' parts from the options returned by the variable query. This allows the variable drop-down list to contain a friendly name for each value that can be selected. Using named capture groups, you can capture separate 'text' and 'value' parts from the options returned by the variable query. This allows the variable drop-down list to contain a friendly name for each value that can be selected.
For example, when querying the `node_hwmon_chip_names` Prometheus metric, the `chip_name` is a lot friendlier that the `chip` value. So the following variable query result: For example, when querying the `node_hwmon_chip_names` Prometheus metric, the `chip_name` is a lot friendlier that the `chip` value. So the following variable query result: