logqlmodel

Documentation

Index

• Constants
• Variables
• type LimitError
  • func NewSeriesLimitError(limit int) *LimitError
  • func (e LimitError) Is(target error) bool
• type ParseError
  • func NewParseError(msg string, line, col int) ParseError
  • func NewStageError(expr string, err error) ParseError
  • func (p ParseError) Error() string
  • func (p ParseError) Is(target error) bool
• type PipelineError
  • func NewPipelineErr(metric labels.Labels) *PipelineError
  • func (e PipelineError) Error() string
  • func (e PipelineError) Is(target error) bool
• type Result
• type Streams
  • func (streams Streams) Len() int
  • func (streams Streams) Less(i, j int) bool
  • func (streams Streams) Lines() int64
  • func (Streams) String() string
  • func (streams Streams) Swap(i, j int)
  • func (Streams) Type() parser.ValueType

Constants

const PackedEntryKey = "_entry"

PackedEntryKey is a special JSON key used by the pack promtail stage and unpack parser

const ValueTypeStreams = "streams"

ValueTypeStreams promql.ValueType for log streams

Variables

var (
	ErrParse    = errors.New("failed to parse the log query")
	ErrPipeline = errors.New("failed execute pipeline")
	ErrLimit    = errors.New("limit reached while evaluating the query")
	ErrorLabel  = "__error__"
)

Those errors are useful for comparing error returned by the engine. e.g. errors.Is(err,logqlmodel.ErrParse) let you know if this is a ast parsing error.

Types

type LimitError

type LimitError struct {
	// contains filtered or unexported fields
}

func NewSeriesLimitError

func NewSeriesLimitError(limit int) *LimitError

func (LimitError) Is

func (e LimitError) Is(target error) bool

Is allows to use errors.Is(err,ErrLimit) on this error.

type ParseError

type ParseError struct {
	// contains filtered or unexported fields
}

ParseError is what is returned when we failed to parse.

func NewParseError

func NewParseError(msg string, line, col int) ParseError

func NewStageError

func NewStageError(expr string, err error) ParseError

func (ParseError) Error

func (p ParseError) Error() string

func (ParseError) Is

func (p ParseError) Is(target error) bool

Is allows to use errors.Is(err,ErrParse) on this error.

type PipelineError

type PipelineError struct {
	// contains filtered or unexported fields
}

func NewPipelineErr

func NewPipelineErr(metric labels.Labels) *PipelineError

func (PipelineError) Error

func (e PipelineError) Error() string

func (PipelineError) Is

func (e PipelineError) Is(target error) bool

Is allows to use errors.Is(err,ErrPipeline) on this error.

type Result

type Result struct {
	Data       parser.Value
	Statistics stats.Result
}

Result is the result of a query execution.

type Streams

type Streams []logproto.Stream

Streams is promql.Value

func (Streams) Len

func (streams Streams) Len() int

func (Streams) Less

func (streams Streams) Less(i, j int) bool

func (Streams) Lines

func (streams Streams) Lines() int64

func (Streams) String

func (Streams) String() string

String implements `promql.Value`

func (Streams) Swap

func (streams Streams) Swap(i, j int)

func (Streams) Type

func (Streams) Type() parser.ValueType

Type implements `promql.Value`