Aliaksandr Valialkin
f93247e82d
docs/MetricsQL.md: clarify that limitk(k, q) returns an arbitrary set of k time series with each call
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/951
2020-12-12 14:17:37 +02:00
Aliaksandr Valialkin
e2e8ef86d9
app/vmselect/promql: add count_eq_over_time(m[d], N) and count_ne_over_time(m[d], N) for calculating the number of samples in m over d that are equal / not equal to N
2020-12-05 12:30:46 +02:00
Aliaksandr Valialkin
66379cc69f
app/vmselect/promql: add label_uppercase(q, label1, ... labelN) and label_lowercase(q, label1, ... labelN) functions
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/936
2020-12-03 21:47:36 +02:00
John Belmonte
093a891762
MetricsQL docs: parameter consistency ( #915 )
...
* MetricsQL docs: parameter consistency
if I understand correctly:
* `fun(q)` - fun takes instant vector
* `fun(m[d])` - fun takes range vector
* Update docs/MetricsQL.md
Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
2020-11-20 11:42:22 +02:00
Aliaksandr Valialkin
9deda5107b
docs/MetricsQL.md: fix a link to with templates page
2020-11-05 16:12:32 +02:00
Aliaksandr Valialkin
cd071357d8
docs/MetricsQL.md: add missing whitespace
2020-11-02 23:49:56 +02:00
Aliaksandr Valialkin
c539494b36
app/vmselect/promql: allow passing optional third argument to topk_* and bottomk_* functions in order to obtain sum of time series outside top/bottom K
2020-11-01 23:35:06 +02:00
Aliaksandr Valialkin
2ed069c3bc
docs/MetricsQL.md: small clarifications
2020-10-17 12:01:43 +03:00
Aliaksandr Valialkin
7f983d461a
docs/MetricsQL.md: mention that VictoriaMetrics keeps metric names after applying functions which dont change time series meaning
2020-10-12 13:25:25 +03:00
John Belmonte
c9d0905b17
fix typo on outliersk() doc ( #758 )
2020-09-11 00:55:53 +03:00
Aliaksandr Valialkin
f4e7e5fb90
app/vmselect/promql: add count_le_over_time(m[d], le) and count_gt_over_time(m[d], gt) functions
...
These functions returns the number of raw samples that don't exceed `le` or are bigger than `gt`.
These functions are complement to already existing `share_le_over_time(m[d], le)` and `share_gt_over_time(m[d], gt)`.
2020-09-03 15:29:10 +03:00
Aliaksandr Valialkin
7d89fafe1a
app/vmselect/promql: allow passing multiple args to aggregate functions such as avg(q1, q2, q3)
2020-08-15 01:15:09 +03:00
Aliaksandr Valialkin
d60908bba4
docs/MetricsQL.md: mention that MetricsQL removes all the NaN values from results
2020-08-07 07:51:45 +03:00
Aliaksandr Valialkin
e6eee2bebf
app/vmselect/promql: add zscore-related functions: zscore_over_time(m[d]) and zscore(q) by (...)
2020-08-03 21:52:18 +03:00
Aliaksandr Valialkin
48d0ec1363
docs/MetricsQL.md: small fixes in the docs
2020-07-28 13:27:37 +03:00
Aliaksandr Valialkin
994fa2f3bf
app/vmselect/promql: add buckets_limit(k, buckets) function, which limits the number of buckets per time series to k
...
This function works with both Prometheus-style and VictoriaMetrics-style buckets.
The function removes buckets with the lowest values in order to reserve the highest precision.
The function is useful for building heatmaps in Grafana from too big number of buckets.
2020-07-24 16:13:53 +03:00
Aliaksandr Valialkin
3e557c9861
app/vmselect/promql: add rate_over_sum(m[d]) function to MetricsQL, which returns rate over sum of m values over d duration
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Something like `sum_over_time(m[d]) / d`, but more accurate.
2020-07-24 01:17:42 +03:00
Aliaksandr Valialkin
ecb1b2564a
app/vmselect/promql: add mode() aggregate function
2020-07-20 15:31:20 +03:00
Aliaksandr Valialkin
1c641037e8
app/vmselect/promql: add mode_over_time(m[d]) function
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See https://en.wikipedia.org/wiki/Mode_(statistics) and https://stackoverflow.com/questions/61134078/promql-query-to-return-the-value-from-a-range-vector-which-occurs-maximum-no-of
2020-07-17 18:28:45 +03:00
Aliaksandr Valialkin
df01836818
app/vmselect/promql: keep all labels for time series from any() call
2020-07-17 15:17:54 +03:00
Aliaksandr Valialkin
5d3db3ff7c
app/vmselect: add interpolate function for filling gaps with linearly interpolated values
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See https://stackoverflow.com/q/62565021/274937 for details
2020-07-02 14:54:21 +03:00
Aliaksandr Valialkin
dbd8beccfa
app/vmselect/promql: add ascent_over_time(m[d]) and descent_over_time(m[d]) functions
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These functions could be useful in GPS tracking apps for calculating the summary for height gain/loss
over the given duration `d`.
2020-05-21 12:07:48 +03:00
Aliaksandr Valialkin
7705c19720
docs/MetricsQL.md: add a link to https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085
2020-05-19 23:20:13 +03:00
Aliaksandr Valialkin
a441cdd1d9
app/vmselect/promql: add outliersk(N, m) aggregate function for anomaly detection across groups of similar time series
2020-05-19 13:52:36 +03:00
Aliaksandr Valialkin
cc311e20fe
app/vmselect/promql: add any(x) by (y) aggregate function, which returns any time series from q for each group y
2020-05-12 19:45:56 +03:00
Aliaksandr Valialkin
574289c3fb
app/vmselect/promql: support for sum(x) by (y) limit N syntax in order to limit the number of output time series after aggregation
2020-05-12 19:45:54 +03:00
Aliaksandr Valialkin
d2af2c8c3e
docs/MetricsQL.md: document first_over_time and last_over_time functions
2020-05-02 22:43:29 +03:00
Aliaksandr Valialkin
4e4f57b121
lib/metricsql: move it to a separate repository - github.com/VictoriaMetrics/metrics
2020-04-28 15:28:22 +03:00
Aliaksandr Valialkin
fdc2a9d1d7
app/vmselect: add label_map(q, label, srcValue1, dstValue1, ... srcValueN, dstValueN) function to MetricsQL
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/369
2020-03-12 19:13:47 +02:00
Aliaksandr Valialkin
7b1c7051a3
app/vmselect: add sort_by_label(q, label) and sort_by_label_desc(q, label) functions
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This is implementation of https://github.com/prometheus/prometheus/pull/1533 for VictoriaMetrics.
2020-02-13 17:01:37 +02:00
Aliaksandr Valialkin
4cc0163c7c
docs: migrate ExtendedPromQL->MetricsQL in order to be more consistent
2020-02-10 23:02:43 +02:00
