The Prometheus monitoring system and time series database.

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Andrew Hall 3bda9a3396 promql: allow timestamp() to be wrapped as a step invariant depending on arguments (#17313) ... Some timestamp functions can be safely wrapped as a step invariant. Then once we do that we never need to check or unwrap at evaluation time. For instance; `timestamp(metric @ 1)` is step invariant, whereas `timestamp(abs(metric @ 1))` is not. Currently all `timestamp` `*parser.Call` are excluded from being considered step invariant since it is listed in the `AtModifierUnsafeFunctions` map. This PR adds an extra check for timestamp functions which consider the arguments, and if the argument is a simple VectorSelector then the entire `*parser.Call` can be safely wrapped as a step invariant. Signed-off-by: Andrew Hall <andrew.hall@grafana.com> Co-authored-by: Bryan Boreham <bjboreham@gmail.com>		2 months ago
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fuzz-data	textparse: Add fuzzing and fix bug caught	9 years ago
parser	Merge pull request #17904 from linasm/trim_histogram	2 months ago
promqltest	promql: allow timestamp() to be wrapped as a step invariant depending on arguments (#17313)	2 months ago
bench_test.go	enable experimental functions in promql benchmarks	3 months ago
durations.go	Remove copyright date from headers (#17785)	4 months ago
durations_test.go	Refactor parse.go into an instance-based Parser interface	3 months ago
engine.go	promql: allow timestamp() to be wrapped as a step invariant depending on arguments (#17313)	2 months ago
engine_internal_test.go	Refactor parse.go into an instance-based Parser interface	3 months ago
engine_test.go	promql: allow timestamp() to be wrapped as a step invariant depending on arguments (#17313)	2 months ago
functions.go	PromQL: Add experimental histogram_quantiles variadic function (#17285)	3 months ago
functions_internal_test.go	promql: use Kahan summation for Native Histograms (#15687)	3 months ago
functions_test.go	tests(teststorage): Close Storage in the helper (#17902)	3 months ago
fuzz.go	Refactor parse.go into an instance-based Parser interface	3 months ago
fuzz_test.go	Remove copyright date from headers (#17785)	4 months ago
histogram_stats_iterator.go	Remove copyright date from headers (#17785)	4 months ago
histogram_stats_iterator_test.go	feat(tsdb): new AppenderV2 and AtST interface for chunks	4 months ago
info.go	promql: info function: support multiple name matchers (#17968)	3 months ago
promql_test.go	Refactor parse.go into an instance-based Parser interface	3 months ago
quantile.go	Use custom annotation for histogram quantile monotonicity info to provide more details (#15578)	3 months ago
quantile_test.go	Use custom annotation for histogram quantile monotonicity info to provide more details (#15578)	3 months ago
query_logger.go	fix(promql): prevent panic in trimStringByBytes on invalid UTF-8	3 months ago
query_logger_test.go	fix(promql): prevent panic in trimStringByBytes on invalid UTF-8	3 months ago
value.go	feat(tsdb): new AppenderV2 and AtST interface for chunks	4 months ago
value_test.go	Remove copyright date from headers (#17785)	4 months ago