mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-23 00:46:23 +01:00
36 lines
1.2 KiB
Go
36 lines
1.2 KiB
Go
|
package metricsql_test
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"log"
|
||
|
|
|
||
|
|
"github.com/VictoriaMetrics/VictoriaMetrics/lib/metricsql"
|
||
|
|
)
|
||
|
|
|
||
|
|
func ExampleParse() {
|
||
|
|
expr, err := metricsql.Parse(`sum(rate(foo{bar="baz"}[5m])) by (x,y)`)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatalf("parse error: %s", err)
|
||
|
|
}
|
||
|
|
fmt.Printf("parsed expr: %s\n", expr.AppendString(nil))
|
||
|
|
|
||
|
|
ae := expr.(*metricsql.AggrFuncExpr)
|
||
|
|
fmt.Printf("aggr func: name=%s, arg=%s, modifier=%s\n", ae.Name, ae.Args[0].AppendString(nil), ae.Modifier.AppendString(nil))
|
||
|
|
|
||
|
|
fe := ae.Args[0].(*metricsql.FuncExpr)
|
||
|
|
fmt.Printf("func: name=%s, arg=%s\n", fe.Name, fe.Args[0].AppendString(nil))
|
||
|
|
|
||
|
|
re := fe.Args[0].(*metricsql.RollupExpr)
|
||
|
|
fmt.Printf("rollup: expr=%s, window=%s\n", re.Expr.AppendString(nil), re.Window)
|
||
|
|
|
||
|
|
me := re.Expr.(*metricsql.MetricExpr)
|
||
|
|
fmt.Printf("metric: labelFilter1=%s, labelFilter2=%s", me.LabelFilters[0].AppendString(nil), me.LabelFilters[1].AppendString(nil))
|
||
|
|
|
||
|
|
// Output:
|
||
|
|
// parsed expr: sum(rate(foo{bar="baz"}[5m])) by (x, y)
|
||
|
|
// aggr func: name=sum, arg=rate(foo{bar="baz"}[5m]), modifier=by (x, y)
|
||
|
|
// func: name=rate, arg=foo{bar="baz"}[5m]
|
||
|
|
// rollup: expr=foo{bar="baz"}, window=5m
|
||
|
|
// metric: labelFilter1=__name__="foo", labelFilter2=bar="baz"
|
||
|
|
}
|