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Julius Volz d411a7d810 Allow reversing vector and scalar arguments in binops. ... This allows putting a scalar as the first argument of a binary operator in which the second argument is a vector: <scalar> <binop> <vector> For example, 1 / http_requests_total ...will output a vector in which every sample value is 1 divided by the respective input vector element. This even works for filter binary operators now: 1 == http_requests_total Returns a vector with all values set to 1 for every element in http_requests_total whose initial value was 1. Note: For filter binary operators, the resulting values are always taken from the left-hand-side of the operation, no matter whether the scalar or the vector argument is the left-hand-side. That is, 1 != http_requests_total ...will set all result vector sample values to 1, although these are exactly the sample elements that were != 1 in the input vector. If you want to just filter elements without changing their sample values, you still need to do: http_requests_total != 1 The new filter form is a bit exotic, and so probably won't be used often. But it was easier to implement it than disallow it completely or change its behavior. Change-Id: Idd083f2bd3a1219ba1560cf4ace42f5b82e797a5		11 years ago
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ast	Allow reversing vector and scalar arguments in binops.	11 years ago
fixtures	…
Makefile	…
alerting.go	Use custom timestamp type for sample timestamps and related code.	11 years ago
helpers.go	Add regex-matching support for labels.	11 years ago
helpers_test.go	Convert metric.Values to slice of values.	11 years ago
lexer.l	Add regex-matching support for labels.	11 years ago
lexer.l.go	Add regex-matching support for labels.	11 years ago
load.go	Use github.com/golang/glog for all logging.	11 years ago
manager.go	Merge "Display filename when encountering bad rule file."	11 years ago
parser.y	Add regex-matching support for labels.	11 years ago
parser.y.go	Add regex-matching support for labels.	11 years ago
recording.go	Use custom timestamp type for sample timestamps and related code.	11 years ago
rules.go	Use custom timestamp type for sample timestamps and related code.	11 years ago
rules_test.go	Allow reversing vector and scalar arguments in binops.	11 years ago
telemetry.go	add evalDuration histogram and ruleCount counter for rules	11 years ago