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ExtendedPromQL.md: mention about label_value

Aliaksandr Valialkin 2019-08-20 00:38:25 +03:00
parent 275f3ab605
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ExtendedPromQL.md

@ -31,6 +31,7 @@ Try these extensions on [an editable Grafana dashboard](http://play-grafana.vict
- `label_copy(q, src_label1, dst_label1, ... src_labelN, dst_labelN)` for copying label values from `src_*` to `dst_*`. - `label_copy(q, src_label1, dst_label1, ... src_labelN, dst_labelN)` for copying label values from `src_*` to `dst_*`.
- `label_move(q, src_label1, dst_label1, ... src_labelN, dst_labelN)` for moving label values from `src_*` to `dst_*`. - `label_move(q, src_label1, dst_label1, ... src_labelN, dst_labelN)` for moving label values from `src_*` to `dst_*`.
- `label_transform(q, label, regexp, replacement)` for replacing all the `regexp` occurences with `replacement` in the `label` values from `q`. - `label_transform(q, label, regexp, replacement)` for replacing all the `regexp` occurences with `replacement` in the `label` values from `q`.
- `label_value(q, label)` - returns numeric values for the given `label` from `q`.
- `step()` function for returning the step in seconds used in the query. - `step()` function for returning the step in seconds used in the query.
- `start()` and `end()` functions for returning the start and end timestamps of the `[start ... end]` range used in the query. - `start()` and `end()` functions for returning the start and end timestamps of the `[start ... end]` range used in the query.
- `integrate(m[d])` for returning integral over the given duration `d` for the given metric `m`. - `integrate(m[d])` for returning integral over the given duration `d` for the given metric `m`.