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|
package metricsql
import (
"strings"
)
var aggrFuncs = map[string]bool{
// See https://prometheus.io/docs/prometheus/latest/querying/operators/#aggregation-operators
"sum": true,
"min": true,
"max": true,
"avg": true,
"stddev": true,
"stdvar": true,
"count": true,
"count_values": true,
"bottomk": true,
"topk": true,
"quantile": true,
"group": true,
// MetricsQL extension funcs
"median": true,
"limitk": true,
"distinct": true,
"sum2": true,
"geomean": true,
"histogram": true,
"topk_min": true,
"topk_max": true,
"topk_avg": true,
"topk_median": true,
"bottomk_min": true,
"bottomk_max": true,
"bottomk_avg": true,
"bottomk_median": true,
"any": true,
"outliersk": true,
"mode": true,
"zscore": true,
}
func isAggrFunc(s string) bool {
s = strings.ToLower(s)
return aggrFuncs[s]
}
func isAggrFuncModifier(s string) bool {
s = strings.ToLower(s)
switch s {
case "by", "without":
return true
default:
return false
}
}
|
