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136 commits

Author SHA1 Message Date
Aliaksandr Valialkin
a14053ffa0 app/vmselect/promql: add histogram_avg(), histogram_stddev() and histogram_stdvar() functions to MetricsQL 2021-03-04 14:12:07 +02:00
Aliaksandr Valialkin
fa03e0d210 app/vmselect/promql: add increase_pure() function to MetricsQL 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
 2021-02-22 19:14:15 +02:00
Aliaksandr Valialkin
157c02622b app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"} syntax 2021-02-03 01:21:54 +02:00
Aliaksandr Valialkin
1051d8aa2d app/vmselect/promql: add ability to pass multiple labels to sort_by_label and sort_by_label_desc functions 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/992
 2021-01-13 12:44:51 +02:00
Aliaksandr Valialkin
1837f2f7d3 app/vmselect/promql: add tfirst_over_time(m[d]) and tlast_over_time(m[d]) MetricsQL functions for returning timestamps for the first and the last samples in m over d 2021-01-12 16:12:12 +02:00
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 
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 
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 
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 
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 
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 
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 
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