promql

Documentation

Index

• func GenName(query string) (string, error)
• type Rewriter
  • func NewRewriter(measurement string) *Rewriter
  • func (w *Rewriter) Rewrite(query string) (string, error)
  • func (w *Rewriter) Visit(node parser.Node, path []parser.Node) (v parser.Visitor, err error)

Functions

func GenName

func GenName(query string) (string, error)

GenName generates a name for a promql expression used on Guance Dashboard

Types

type Rewriter

type Rewriter struct {
	Measurement string
}

Rewriter is a rewriter to convert Grafana-specific PromQL to MetricsQL on Guance Cloud

func NewRewriter

func NewRewriter(measurement string) *Rewriter

NewRewriter will create new Rewriter

func (*Rewriter) Rewrite

func (w *Rewriter) Rewrite(query string) (string, error)

Rewrite will rewrite a query from Grafana-specific PromQL to MetricsQL on Guance Cloud

func (*Rewriter) Visit

func (w *Rewriter) Visit(node parser.Node, path []parser.Node) (v parser.Visitor, err error)