1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93
|
package metricsql
import (
"strings"
)
var transformFuncs = map[string]bool{
// Standard promql funcs
// See funcs accepting instant-vector on https://prometheus.io/docs/prometheus/latest/querying/functions/ .
"abs": true,
"absent": true,
"ceil": true,
"clamp_max": true,
"clamp_min": true,
"day_of_month": true,
"day_of_week": true,
"days_in_month": true,
"exp": true,
"floor": true,
"histogram_quantile": true,
"hour": true,
"label_join": true,
"label_replace": true,
"ln": true,
"log2": true,
"log10": true,
"minute": true,
"month": true,
"round": true,
"scalar": true,
"sort": true,
"sort_desc": true,
"sqrt": true,
"time": true,
// "timestamp" has been moved to rollup funcs. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/415
"vector": true,
"year": true,
// New funcs from MetricsQL
"label_set": true,
"label_map": true,
"label_uppercase": true,
"label_lowercase": true,
"label_del": true,
"label_keep": true,
"label_copy": true,
"label_move": true,
"label_transform": true,
"label_value": true,
"label_match": true,
"label_mismatch": true,
"union": true,
"": true, // empty func is a synonim to union
"keep_last_value": true,
"keep_next_value": true,
"interpolate": true,
"start": true,
"end": true,
"step": true,
"running_sum": true,
"running_max": true,
"running_min": true,
"running_avg": true,
"range_sum": true,
"range_max": true,
"range_min": true,
"range_avg": true,
"range_first": true,
"range_last": true,
"range_quantile": true,
"smooth_exponential": true,
"remove_resets": true,
"rand": true,
"rand_normal": true,
"rand_exponential": true,
"pi": true,
"sin": true,
"cos": true,
"asin": true,
"acos": true,
"prometheus_buckets": true,
"buckets_limit": true,
"histogram_share": true,
"sort_by_label": true,
"sort_by_label_desc": true,
}
// IsTransformFunc returns whether funcName is known transform function.
func IsTransformFunc(funcName string) bool {
s := strings.ToLower(funcName)
return transformFuncs[s]
}
|