Type Alias WindowAggSpec

Specification for a window aggregate.

type WindowAggSpec = {
    alpha?: boolean;
    frames?: string[];
    name: string;
    offset?: boolean;
    result_type?: ColumnType;
}

Properties

alpha?: boolean

Takes a smoothing factor, as ema does.

frames?: string[]

Frame kinds this aggregate accepts (rows, range, cumulative). Empty means it takes no frame at all.

name: string

offset?: boolean

Takes a row offset, as lag / lead / diff do.

result_type?: ColumnType

The output column type. None means the source column's type, which is what min / max / lag do.