mirror of https://github.com/grafana/grafana.git
115 lines
2.6 KiB
Go
115 lines
2.6 KiB
Go
package expr
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import (
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"embed"
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"github.com/grafana/grafana/pkg/expr/classic"
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"github.com/grafana/grafana/pkg/expr/mathexp"
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)
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// Supported expression types
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// +enum
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type QueryType string
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const (
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// Apply a mathematical expression to results
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QueryTypeMath QueryType = "math"
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// Reduce query results
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QueryTypeReduce QueryType = "reduce"
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// Resample query results
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QueryTypeResample QueryType = "resample"
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// Classic query
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QueryTypeClassic QueryType = "classic_conditions"
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// Threshold
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QueryTypeThreshold QueryType = "threshold"
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// SQL query via DuckDB
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QueryTypeSQL QueryType = "sql"
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)
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type MathQuery struct {
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// General math expression
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Expression string `json:"expression" jsonschema:"minLength=1,example=$A + 1,example=$A/$B"`
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}
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type ReduceQuery struct {
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// Reference to single query result
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Expression string `json:"expression" jsonschema:"minLength=1,example=$A"`
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// The reducer
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Reducer mathexp.ReducerID `json:"reducer"`
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// Reducer Options
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Settings *ReduceSettings `json:"settings,omitempty"`
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}
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// QueryType = resample
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type ResampleQuery struct {
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// The math expression
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Expression string `json:"expression" jsonschema:"minLength=1,example=$A + 1,example=$A"`
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// The time duration
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Window string `json:"window" jsonschema:"minLength=1,example=1d,example=10m"`
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// The downsample function
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Downsampler mathexp.ReducerID `json:"downsampler"`
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// The upsample function
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Upsampler mathexp.Upsampler `json:"upsampler"`
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}
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type ThresholdQuery struct {
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// Reference to single query result
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Expression string `json:"expression" jsonschema:"minLength=1,example=$A"`
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// Threshold Conditions
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Conditions []ThresholdConditionJSON `json:"conditions"`
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}
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type ClassicQuery struct {
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Conditions []classic.ConditionJSON `json:"conditions"`
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}
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// SQLQuery requires the sqlExpression feature flag
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type SQLExpression struct {
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Expression string `json:"expression" jsonschema:"minLength=1,example=SELECT * FROM A LIMIT 1"`
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}
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//-------------------------------
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// Non-query commands
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//-------------------------------
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type ReduceSettings struct {
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// Non-number reduce behavior
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Mode ReduceMode `json:"mode"`
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// Only valid when mode is replace
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ReplaceWithValue *float64 `json:"replaceWithValue,omitempty"`
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}
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// Non-Number behavior mode
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// +enum
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type ReduceMode string
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const (
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// Default mode
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ReduceModeStrict = ""
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// Drop non-numbers
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ReduceModeDrop ReduceMode = "dropNN"
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// Replace non-numbers
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ReduceModeReplace ReduceMode = "replaceNN"
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)
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//go:embed query.types.json
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var f embed.FS
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func QueryTypeDefinitionListJSON() ([]byte, error) {
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return f.ReadFile("query.types.json")
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}
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