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ExtendedPromQL.md: add label_transform description

Aliaksandr Valialkin 2019-05-23 16:20:33 +03:00
parent 39bd9c7ecd
commit 113a090f73
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ExtendedPromQL.md

@ -27,6 +27,7 @@ Try these extensions on [an editable Grafana dashboard](http://play-grafana.vict
- `label_keep(q, label1, ... labelN)` for deleting all the labels except the given labels from `q`.
- `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_transform(q, label, regexp, replacement)` for replacing all the `regexp` occurences with `replacement` in the `label` values from `q`.
- `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.
- `integrate(m[d])` for returning integral over the given duration `d` for the given metric `m`.