Like Prometheus, but for logs.

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Bryan Boreham a50cac7674 filters: use faster regexp package (#5315) ... * regexp-filter: improve benchmark Add a few more cases based on real-world usage. Also simplify the loop to just run the number of times requested. Go benchmarks run 'N' times to reach a duration, default 1 second. Previously the benchmark was running N*1000000 times, which took 7 seconds minimum for some cases. * regexp filter: use modified package with optimisations See https://github.com/grafana/regexp/tree/speedup#readme Includes the following changes proposed upstream: * [regexp: allow patterns with no alternates to be one-pass](https://go-review.googlesource.com/c/go/+/353711) * [regexp: speed up onepass prefix check](https://go-review.googlesource.com/c/go/+/354909) * [regexp: handle prefix string with fold-case](https://go-review.googlesource.com/c/go/+/358756) * [regexp: avoid copying each instruction executed](https://go-review.googlesource.com/c/go/+/355789) * [regexp: allow prefix string anchored at beginning](https://go-review.googlesource.com/c/go/+/377294) * Add grafana/regexp to vendor directory		4 years ago
..
jsonexpr	Querier/Ingester: Fixing json expression parser bug (#3928)	5 years ago
logfmt	Parser: Allow literal control chars in logfmt decoder (#3932)	5 years ago
pattern	Fixes the pattern parser validation. (#4308)	4 years ago
error.go	Loki/Promtail: Client Refactor (#3623)	5 years ago
filter.go	filters: use faster regexp package (#5315)	4 years ago
filter_test.go	filters: use faster regexp package (#5315)	4 years ago
fmt.go	filters: use faster regexp package (#5315)	4 years ago
fmt_test.go	LogQL: add __line__ function to | line_format template (#4879)	4 years ago
ip.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
ip_test.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
json_expr.go	LogQL: Simple JSON expressions (#3280)	5 years ago
label_filter.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
label_filter_test.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
labels.go	Fixes log deduplication when mutating Labels using LogQL (#5289)	4 years ago
labels_test.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
metrics_extraction.go	Fixes log deduplication when mutating Labels using LogQL (#5289)	4 years ago
metrics_extraction_test.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
parser.go	filters: use faster regexp package (#5315)	4 years ago
parser_hints.go	Fixes parser labels hint for grouping. (#3763)	5 years ago
parser_hints_test.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
parser_test.go	added upgrade notes (#5311)	4 years ago
pipeline.go	Fixes log deduplication when mutating Labels using LogQL (#5289)	4 years ago
pipeline_test.go	Upgrade Cortex, Prometheus and Thanos (#4830)	4 years ago
util.go	Fixes a panic with whitespace key. (#3372)	5 years ago
util_test.go	Fixes a panic with whitespace key. (#3372)	5 years ago