Function Window

dialect/sql/builder.go:2798–2800

Window returns a new window clause with a custom selector allowing for custom window functions. Window(func(b *Builder) { b.WriteString(Sum(posts.C("duration"))) }).PartitionBy("author_id").OrderBy("id"), "duration").

(fn func(*Builder))

//		b.WriteString(Sum(posts.C("duration")))
//	}).PartitionBy("author_id").OrderBy("id"), "duration").
func Window(fn func(*Builder)) *WindowBuilder {
	return &WindowBuilder{fn: fn}
}

// PartitionBy indicates to divide the query rows into groups by the given columns.
// Note that, standard SQL spec allows partition only by columns, and in order to