aggregate

package
v0.2.0 Latest Latest
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 Go to latest Published: Aug 14, 2026 License: MIT Imports: 5 Imported by: 0

Documentation

Overview

Package aggregate implements the "aggregate" transform primitive: it folds every existing State.Rows entry's Values[field] down to one summary value (sum, avg, min, or max) and appends the result as a new Row.

Index

Constants

View Source 
const Name = "aggregate"

Name is the primitive's registry key.

Variables

View Source 
var ErrInvalidParams = errors.New("invalid aggregate params")

ErrInvalidParams is returned by New when the "aggregate" step's params omit field or specify an op that isn't OpSum, OpAvg, OpMin, or OpMax.

Functions

func New 

func New(params []byte) (transform.Primitive, error)

Types

type Op 

type Op = string

Op is the finite set of aggregation operations "aggregate" supports. 

const (
	OpSum Op = "sum"
	OpAvg Op = "avg"
	OpMin Op = "min"
	OpMax Op = "max"
)

Source Files

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