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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
> **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.
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: