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Docs: Update prometheus.md (#28483)

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Diana Payton 2020-10-22 11:30:34 -07:00 committed by GitHub
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docs/sources/datasources/prometheus.md
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@ -90,11 +90,11 @@ provides the following functions you can use in the `Query` input field.
| Name | Description |
| -------------------------------- | ----------------------------------------------------------------------- |
| `label`\``names()` | Returns a list of label names. |
| `label`\``values(label)` | Returns a list of label values for the `label` in every metric. |
| `label`\``values(metric, label)` | Returns a list of label values for the `label` in the specified metric. |
| `label_\__names()` | Returns a list of label names. |
| `label_\__values(label)` | Returns a list of label values for the `label` in every metric. |
| `label_\__values(metric, label)` | Returns a list of label values for the `label` in the specified metric. |
| `metrics(metric)` | Returns a list of metrics matching the specified `metric` regex. |
| `query`\``result(query)` | Returns a list of Prometheus query result for the `query`. |
| `query_\__result(query)` | Returns a list of Prometheus query result for the `query`. |
For details of what _metric names_, _label names_ and _label values_ are please refer to the [Prometheus documentation](http://prometheus.io/docs/concepts/data_model/#metric-names-and-labels).