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Author SHA1 Message Date
JuanJo Ciarlante c94c5b64c3
feat: add limitk() and limit_ratio() operators (#12503) 
* rebase 2024-07-01, picks previous renaming to `limitk()` and `limit_ratio()`

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* gofumpt -d -extra

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* more lint fixes

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* more lint fixes+

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* put limitk() and limit_ratio() behind --enable-feature=promql-experimental-functions

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* EnableExperimentalFunctions for TestConcurrentRangeQueries() also

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* use testutil.RequireEqual to fix tests, WIP equivalent thingie for require.Contains

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* lint fix

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* moar linting

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* rebase 2024-06-19

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* re-add limit(2, metric) testing for N=2 common series subset

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* move `ratio = param` to default switch case, for better readability

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* gofumpt -d -extra util/testutil/cmp.go

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* early break when reaching k elems in limitk(), should have always been so (!)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* small typo fix

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* no-change small break-loop rearrange for readability

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove IsNan(ratio) condition in switch-case, already handled as input validation

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* no-change adding some comments

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* no-change simplify fullMatrix() helper functions used for tests

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add `limitk(-1, metric)` testcase, which is handled as any k < 1 case

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* engine_test.go: no-change create `requireCommonSeries() helper func (moving code into it) for readability

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* rebase 2024-06-21

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* engine_test.go: HAPPY NOW about its code -> reorg, create and use simpleRangeQuery() function, less lines and more readable ftW \o/

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* move limitk(), limit_ratio() testing to promql/promqltest/testdata/limit.test

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove stale leftover after moving tests from engine_test.go to testdata/

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix flaky `limit_ratio(0.5, ...)` test case

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Update promql/engine.go

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Update promql/engine.go

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Update promql/engine.go

Co-authored-by: Julius Volz <julius.volz@gmail.com>
Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix AddRatioSample() implementation to use a single conditional (instead of switch/case + fallback return)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* docs/querying/operators.md: document r < 0

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add negative limit_ratio() example to docs/querying/examples.md

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* move more extensive docu examples to docs/querying/operators.md

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* typo

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* small docu fix for poor-mans-normality-check, add it to limit.test ;)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* limit.test: expand "Poor man's normality check" to whole eval range

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* restore mistakenly removed existing small comment

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* expand poors-man-normality-check case(s)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* Revert "expand poors-man-normality-check case(s)"

This reverts commit f69e1603b2ebe69c0a100197cfbcf6f81644b564, indeed too
flaky 0:)

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove humor from docs/querying/operators.md

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix signoff

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add web/ui missing changes

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* expand limit_ratio test cases, cross-fingering they'll not be flaky

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* remove flaky test

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add missing warnings.Merge(ws) in instant-query return shortcut

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* add missing LimitK||LimitRatio case to codemirror-promql/src/parser/parser.ts

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* fix ui-lint

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

* actually fix returned warnings :]

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>

---------

Signed-off-by: JuanJo Ciarlante <juanjosec@gmail.com>
Co-authored-by: Julius Volz <julius.volz@gmail.com>
 2024-07-03 22:18:57 +02:00
Ganesh Vernekar 3d54bcc018
Merge pull request #14362 from charleskorn/charleskorn/sum-infinity 2024-07-03 01:05:03 -04:00
Charles Korn fd6bdf5230
Fix issue where summation of +/- infinity returns NaN instead of infinity 
Signed-off-by: Charles Korn <charles.korn@grafana.com>
 2024-06-28 11:26:54 +10:00
Björn Rabenstein 2e58d46522
Merge pull request #13662 from prometheus/nhcb 
Native histograms custom buckets storage
 2024-06-27 21:44:20 +02:00
Bryan Boreham b6aba4ff14
Merge pull request #14074 from bboreham/kahan-sum-sum 
[ENHANCEMENT] PromQL: use Kahan summation for sum()
 2024-06-24 11:13:26 +01:00
Jeanette Tan dda5f48c9e Merge branch 'main' into nhcb-review-2 2024-06-20 22:50:00 +08:00
Jeanette Tan fc9dc72028 remove eval_with_nhcb 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-06-20 22:49:00 +08:00
Jeanette Tan a6d788b1be update missed suggested change from code review 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-06-20 22:49:00 +08:00
Charles Korn aeec30f082
Convert TestTimestampFunction_StepsMoreOftenThanSamples 
Signed-off-by: Charles Korn <charles.korn@grafana.com>
 2024-06-17 16:56:56 +10:00
Charles Korn 987fa5c6a2
Convert range query test cases to test scripting language 
Signed-off-by: Charles Korn <charles.korn@grafana.com>
 2024-06-17 16:43:01 +10:00
Jeanette Tan 14f8dded39 Merge branch 'main' into nhcb 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-06-07 19:17:14 +08:00
beorn7 c7fdfe8004 promql: Add tests for histogram counter reset only in bucket 
This also exercises the "fast path" (only decoding count and sum),
i.e. where the counter reset isn't visible at all in the decoded data.

Signed-off-by: beorn7 <beorn@grafana.com>
 2024-06-06 17:47:38 +02:00
Jeanette Tan f028496133 Merge branch 'main' into nhcb 
Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
 2024-05-14 16:20:15 +08:00
Neeraj Gartia 661856cb65 removes the added tests from engine_test.go 
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
 2024-05-13 22:58:25 +05:30
Neeraj Gartia 6119124d0e some nits 
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
 2024-05-13 22:55:38 +05:30
Neeraj Gartia adf5a36c1e adds test for sum, count, stddev, stdvar, quantile and fraction func to promql testing framework 
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
 2024-05-13 22:55:38 +05:30
Neeraj Gartia 8b838a05d9 adds test for native histogram rate func in promql testing framework 
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
 2024-05-13 22:55:38 +05:30
Neeraj Gartia 548bd9d6fb adds TestNativeHistogramRate func to promql test framework 
Signed-off-by: Neeraj Gartia <neerajgartia211002@gmail.com>
 2024-05-13 22:55:38 +05:30
Bryan Boreham ea82b49c33 [ENHANCEMENT] PromQL: use Kahan summation for sum() 
This can give a more precise result, by keeping a separate running
compensation value to accumulate small errors.

See https://en.wikipedia.org/wiki/Kahan_summation_algorithm

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
 2024-05-09 14:29:38 +01:00
Bryan Boreham 11b27d5d22 test: move test files into new promqltest package 
So that promql package does not bring in test-only dependencies.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
 2024-05-08 13:42:55 +01:00