Julien
5d0bc055ef
Merge pull request #17877 from roidelapluie/roidelapluie/funcs
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PromQL: Add start() end() range() and step() functions
2026-04-17 13:51:37 +02:00
Julien Pivotto
ae9e52c868
PromQL: Add start() end() range() and step() functions
...
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
2026-04-16 10:59:23 +02:00
Matthieu MOREL
44d617c671
build: update golangci-lint version to v2.11.4 ( #18480 )
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fix(promql/parser): improve Pretty method for Expressions to handle empty cases
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com >
2026-04-10 07:20:15 +02:00
Julien Pivotto
efe305b898
fuzzing: generate libFuzzer dictionary for FuzzParseExpr
...
Export parser.Keywords() and add GetDictForFuzzParseExpr() so that
the corpus generator can produce a stable fuzzParseExpr.dict file
derived directly from the PromQL grammar rather than maintained by hand.
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
2026-04-08 17:38:23 +02:00
George Krajcsovits
5d3f9ee39b
Merge pull request #17904 from linasm/trim_histogram
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promql: Implement </ and >/ operators for trimming native histograms
2026-02-24 17:16:24 +01:00
Björn Rabenstein
b2e63376da
Merge pull request #18105 from mmorel-35/staticcheck
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chore: enable staticcheck linter and update golangci-lint to 2.10.1
2026-02-19 12:44:00 +01:00
Linas Medžiūnas
5bd0d00f8c
PromQL: Add experimental histogram_quantiles variadic function ( #17285 )
...
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com >
Signed-off-by: Björn Rabenstein <github@rabenste.in >
Signed-off-by: beorn7 <beorn@grafana.com >
Co-authored-by: Björn Rabenstein <github@rabenste.in >
Co-authored-by: beorn7 <beorn@grafana.com >
2026-02-18 17:32:29 +01:00
Matthieu MOREL
addc3dcb47
chore: enable staticcheck linter and update golangci-lint to 2.10.1
...
Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com >
2026-02-18 15:58:16 +00:00
Martin Valiente Ainz
eb5a0e1eed
Refactor parse.go into an instance-based Parser interface
...
Signed-off-by: Martin Valiente Ainz <64830185+tinitiuset@users.noreply.github.com >
2026-02-11 11:21:49 +01:00
Martin Valiente Ainz
539936c861
Replace per-component parser options with default instance
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Signed-off-by: Martin Valiente Ainz <64830185+tinitiuset@users.noreply.github.com >
2026-02-11 11:16:04 +01:00
Martin Valiente Ainz
af16f35ad6
PromQL: Refactor parser to use instance configuration instead of global flags
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Parser configuration is now per-engine/API/loader and no longer uses package-level flags, so behavior is consistent and tests don't rely on save/restore of global variables.
Signed-off-by: Martin Valiente Ainz <64830185+tinitiuset@users.noreply.github.com >
2026-02-11 11:16:04 +01:00
Björn Rabenstein
82fec75982
Merge pull request #17626 from aviralgarg05/fix-promqltest-counter-reset-hint-comparison
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promqltest: Add optional counter reset hint comparison for native histograms
2026-01-22 15:03:20 +01:00
sujal shah
e8bfcfcf1a
promql: Implement </ and >/ operators for trimming native histograms.
...
This implements the TRIM_UPPER (</) and TRIM_LOWER (>/) operators
that allow removing observations below or above a threshold from
a histogram. The implementation zeros out buckets outside the desired
range. It also recalculates the sum, including only bucket counts within
the specified threshold range.
Fixes #14651 .
Signed-off-by: sujal shah <sujalshah28092004@gmail.com >
2026-01-22 15:22:43 +02:00
Julius Volz
d3b6e61487
Put binop fill modifiers behind a feature flag
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Signed-off-by: Julius Volz <julius.volz@gmail.com >
2026-01-15 11:18:48 +01:00
Julius Volz
af3277f832
PromQL: Add fill*() binop modifiers to provide default values for missing series
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Signed-off-by: Julius Volz <julius.volz@gmail.com >
2026-01-15 07:56:21 +01:00
Ben Kochie
e14795bbf4
Remove copyright date from headers ( #17785 )
...
Remove copyright dates from various files as part of [PROM-50].
[PROM-50]: https://github.com/prometheus/proposals/blob/main/proposals/0050-remove-copyright-dates.md
Signed-off-by: SuperQ <superq@gmail.com >
2026-01-05 13:46:21 +01:00
Julius Volz
9da9e6daf4
Merge pull request #17687 from ADITYATIWARI342005/fix/utf8
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promql/parser: fix UTF-8 label quoting in format_query endpoint
2025-12-28 12:08:07 +01:00
aviralgarg05
119e75d78b
promqltest: Properly distinguish explicit counter_reset_hint specification
...
This commit addresses the PR feedback for issue #17615 . The previous
implementation could not distinguish between:
- No counter reset hint specified (meaning "don't care")
- counter_reset_hint:unknown explicitly specified (meaning "verify it's unknown")
Changes:
- Added CounterResetHintSet field to parser.SequenceValue to track
whether counter_reset_hint was explicitly specified in the test file
- Modified buildHistogramFromMap to set this flag when the hint is
present in the descriptor map
- Updated newHistogramSequenceValue helper and histogramsSeries
functions to propagate the flag through histogram series creation
- Updated yacc grammar to use the new helper function
- Modified compareNativeHistogram to accept the flag and only compare
hints when explicitly specified
This allows tests to:
1. Not specify a hint (no comparison, backward compatible)
2. Explicitly specify counter_reset_hint:unknown (verify it's unknown)
3. Explicitly specify counter_reset_hint:gauge/reset/not_reset (verify match)
Fixes #17615
Signed-off-by: aviralgarg05 <gargaviral99@gmail.com >
2025-12-19 23:32:08 +05:30
ADITYA TIWARI
3a82dcc6c5
promql/parser: simplify BinaryExpr label formatting
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Signed-off-by: ADITYA TIWARI <adityatiwari342005@gmail.com >
2025-12-16 12:31:39 +00:00
Aditya Tiwari
301b9eff44
Update comments to clarify label formatting method
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Signed-off-by: Aditya Tiwari <142050150+ADITYATIWARI342005@users.noreply.github.com >
2025-12-16 12:31:39 +00:00
ADITYA TIWARI
2e4f5e8cfc
promql/parser: consolidate label quoting logic
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refactors binary expression formatting to reuse writeLabels() instead
of maintaining separate joinLabels() function. adds comprehensive
UTF-8 label tests for all expression types
Signed-off-by: ADITYA TIWARI <adityatiwari342005@gmail.com >
2025-12-16 12:31:39 +00:00
ADITYA TIWARI
5b299ef99e
fix/promql/parser: Fix utf-8 label quoting in format_query endpoint
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Signed-off-by: ADITYA TIWARI <adityatiwari342005@gmail.com >
2025-12-16 12:31:39 +00:00
Julien Pivotto
d0b122a711
PromQL: duration expression: add range()
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Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
2025-12-10 16:27:18 +01:00
Julien
f73aba34cd
Merge pull request #17427 from roidelapluie/roidelapluie/ffapi
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API: Add a /api/v1/features endpoint
2025-12-10 10:14:03 +01:00
Julien Pivotto
a5671a002f
API: Add a /api/v1/features endpoint
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Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
2025-12-09 16:13:14 +01:00
dongjiang
3239723098
Update golangci-lint and add modernize check ( #17640 )
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* add modernize check
Signed-off-by: dongjiang1989 <dongjiang1989@126.com >
* fix golangci lint
Signed-off-by: dongjiang1989 <dongjiang1989@126.com >
---------
Signed-off-by: dongjiang1989 <dongjiang1989@126.com >
2025-12-05 09:29:10 +01:00
Julius Volz
39e11f50b2
Fix serialization for empty ignoring() in combination with group_x()
...
Currently both the backend and frontend printers/formatters/serializers
incorrectly transform the following expression:
```
up * ignoring() group_left(__name__) node_boot_time_seconds
```
...into:
```
up * node_boot_time_seconds
```
...which yields a different result (including the metric name in the result
vs. no metric name).
We need to keep empty `ignoring()` modifiers if there is a grouping modifier
present.
Signed-off-by: Julius Volz <julius.volz@gmail.com >
2025-12-03 14:15:16 +01:00
Ben Kochie
204249fcb5
Update golangci-lint ( #17478 )
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* Update golangci-lint to v2.6.0
* Fixup various linting issues.
* Fixup deprecations.
* Add exception for `labels.MetricName` deprecation.
Signed-off-by: SuperQ <superq@gmail.com >
2025-11-05 13:47:34 +01:00
Ben Kochie
48956f60d7
Update modernize ( #17471 )
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Apply additional Go modernize tool improvements.
Signed-off-by: SuperQ <superq@gmail.com >
2025-11-04 05:13:49 +00:00
Julius Volz
5318689046
Merge pull request #17380 from roidelapluie/roidelapluie/fixat
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promql/parser: Add string representation for AT token
2025-10-27 16:21:14 +01:00
Linas Medžiūnas
b2e7938e25
[BUGFIX] PromQL: avoid panic parsing malformed info call ( #17379 )
...
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com >
2025-10-23 09:42:19 +02:00
Julien Pivotto
8d4876f944
promql/parser: Add string representation for AT token
...
Add the "@" string representation for the AT token in ItemTypeStr map to
ensure proper token-to-string conversion.
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
2025-10-21 16:50:56 +02:00
Linas Medžiūnas
44df626620
promql (histograms): reconcile mismatched NHCB bounds ( #17278 )
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Fixes #17255 .
The implementation happens mostly in the Add and Sub method, but the reconciliation works for all relevant operations. For example, you can now `rate` over a range wherein the custom bucket boundaries are changing.
Any custom bucket reconciliation is flagged with an info-level annotation.
---------
Signed-off-by: Linas Medziunas <linas.medziunas@gmail.com >
Signed-off-by: Linas Medžiūnas <linasm@users.noreply.github.com >
2025-10-18 01:03:52 +02:00
Julius Volz
a3e404755b
Merge pull request #17354 from prometheus/fix-smoothed-anchored-formatting
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Fix formatting of range vector selectors with smoothed/anchored modifier
2025-10-17 13:36:24 +02:00
Julius Volz
9d7d544be1
Disable extended range selector modifiers again after test run
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Signed-off-by: Julius Volz <julius.volz@gmail.com >
2025-10-17 12:30:57 +02:00
Julius Volz
b7c3a2194f
Fix formatting of range vector selectors with smoothed/anchored modifier
...
The modifiers were already printed as part of the VectorSelector, so for:
`foo[5m] anchored`
...the output was:
`foo anchored[5m] anchored`
Similar to how it was already done for `@` and `offset`, I now removed these
modifiers in the copy of the vector selector that is used to print the matrix
selector. I also removed some unused code that restored the copy of the vector
selector after overwriting its fields. AFAICS there was no use in doing that,
since it was a copy already that would just be thrown away after printing, and
the original selector wasn't affected. I also removed an erroneous comment in
`atOffset()` where no actual copying took place and no fields were overwritten.
Signed-off-by: Julius Volz <julius.volz@gmail.com >
2025-10-17 12:23:53 +02:00
Julien Pivotto
99c926b810
promql: allow 'anchored' and 'smoothed' as metric and label names
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Add ANCHORED and SMOOTHED keywords to the maybe_label and
metric_identifier rules in the parser grammar, allowing them
to be used as metric names and label names, similar to other
keywords like 'offset', 'step', and 'bool'.
This fixes an issue where expressions like `anchored{job="test"}`
and `sum by (smoothed) (some_metric)` would fail to parse.
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
2025-10-17 12:10:52 +02:00
Bryan Boreham
1c58399160
PromQL: Speed up parsing of variadic functions ( #17316 )
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* PromQL: Add benchmark case with variadic function
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
* PromQL: Speed up parsing of variadic functions
Defer formatting of an error message until we hit an error.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
---------
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
2025-10-10 09:16:33 +01:00
beorn7
51e0982c91
promql(histograms): Fix counter reset hint handling when aggregating
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Fixes #17308 .
As explained adding the warn-annotation about conflicting counter
reset hints doesn't happen consistently. Furthermore, because of
incremental mean calculation being used so far (which includes
subtraction), avg calculation always created gauge histograms.
The fix is to make Sub behave like Add WRT counter reset handling, and
then set the result of a subtraction to gauge explicitly in actual
PromQL subtraction (rather than using Sub for something else, like
incremental mean calculation). Also, track the presence of a
CounterReset hint and a NotCounterReset hint separately for the
entirety of aggregated histograms and create the warn-annotation based
on that.
As a minor fix, this commit also consistently creates the warn
annotation in aggregation to be about "aggregation" rather than
"subtraction" or "addition", because the latter are just internal
operations within the aggregation, which is not of interest for the
user.
Signed-off-by: beorn7 <beorn@grafana.com >
2025-10-09 19:40:00 +02:00
Julien
4199c2f45a
Add anchored and smoothed to vector selectors. ( #16457 )
...
* Add anchored and smoothed to vector selectors.
This adds "anchored" and "smoothed" keywords that can be used following a matrix selector.
"Anchored" selects the last point before the range (or the first one after the range) and adds it at the boundary of the matrix selector.
"Smoothed" applies linear interpolation at the edges using the points around the edges. In the absence of a point before or after the edge, the first or the last point is added to the edge, without interpolation.
*Exemple usage*
* `increase(caddy_http_requests_total[5m] anchored)` (equivalent of *caddy_http_requests_total - caddy_http_requests_total offset 5m* but takes counter reset into consideration)
* `rate(caddy_http_requests_total[step()] smoothed)`
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
* Update docs/feature_flags.md
Co-authored-by: Charles Korn <charleskorn@users.noreply.github.com >
Signed-off-by: Julien <291750+roidelapluie@users.noreply.github.com >
* Smoothed/Anchored rate: Add more tests
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
* Anchored/Smoothed modifier: error out with histograms
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
---------
Signed-off-by: Julien Pivotto <291750+roidelapluie@users.noreply.github.com >
Signed-off-by: Julien <291750+roidelapluie@users.noreply.github.com >
Co-authored-by: Charles Korn <charleskorn@users.noreply.github.com >
2025-09-25 11:34:59 +02:00
Bryan Boreham
1cd746ebfb
Merge pull request #17067 from prometheus/faster-promql-printer
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[PERF] PromQL: Speed up PromQL to string conversion
2025-09-04 13:41:21 +01:00
Craig Ringer
1ce84d8e2f
feat(promql): add first_over_time and ts_of_first_over_time
...
Add a first_over_time function, and corresponding ts_of_first_over_time
function. Both are behind the experimental functions feature flag.
Signed-off-by: Craig Ringer <craig.ringer@enterprisedb.com >
2025-09-02 10:24:31 +12:00
beorn7
747c5ee2b1
Apply analyzer "modernize" to the whole codebase
...
See
https://pkg.go.dev/golang.org/x/tools/gopls/internal/analysis/modernize
for details.
This ran into a few issues (arguably bugs in the modernize tool),
which I will fix in the next commit, so that we have transparency what
was done automatically.
Beyond those hiccups, I believe all the changes applied are
legitimate. Even where there might be no tangible direct gain, I would
argue it's still better to use the "modern" way to avoid micro
discussions in tiny style PRs later.
Signed-off-by: beorn7 <beorn@grafana.com >
2025-08-27 14:48:41 +02:00
Bryan Boreham
153cdb2b0b
[PERF] PromQL: Replace Fprintf %f with AppendFloat
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The combination of `AvailableBuffer`` followed by `Write` is optimised
inside `bytes.Buffer`.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
2025-08-22 10:58:01 +01:00
Bryan Boreham
b8d2d505f5
[PERF] PromQL: Replace some Sprintf with bytes.Buffer
...
Goes faster due to reduced memory allocation.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
2025-08-21 11:38:05 +01:00
Bryan Boreham
49d9261693
[PERF] PromQL: Replace some simple Sprintf with string concat
...
This goes faster because there is no runtime format parsing.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
2025-08-21 11:05:49 +01:00
Bryan Boreham
e44ee2f182
[TESTS] PromQL: Add BenchmarkExprString
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Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
2025-08-21 11:05:38 +01:00
Bryan Boreham
66fbea97bb
[TESTS] Check expr with function call in TestExprString
...
Signed-off-by: Bryan Boreham <bjboreham@gmail.com >
2025-08-21 11:04:46 +01:00
Bryan Boreham
8b3f59e9c3
Merge pull request #16593 from bboreham/ast-child-iter
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[PERF] PromQL: Reduce allocations when walking syntax tree
2025-08-21 09:14:41 +01:00
Julius Hinze
77b5c3f217
Histograms: set annotation when adding or subtracting histograms that have not_reset and reset hints.
...
Signed-off-by: Julius Hinze <julius.hinze@grafana.com >
2025-08-20 15:00:45 +02:00
