Method addGroupby

query/outputnode.go:1014–1038

(enc *encoder, fj fastJsonNode,
	res *groupResults, fname string)

}

func (sg *SubGraph) addGroupby(enc *encoder, fj fastJsonNode,
	res *groupResults, fname string) error {

	// Don't add empty groupby
	if len(res.group) == 0 {
		return nil
	}
	g := enc.newNode(enc.idForAttr(fname))
	for _, grp := range res.group {
		uc := enc.newNode(enc.idForAttr("@groupby"))
		for _, it := range grp.keys {
			if err := enc.AddValue(uc, enc.idForAttr(it.attr), it.key); err != nil {
				return err
			}
		}
		for _, it := range grp.aggregates {
			if err := enc.AddValue(uc, enc.idForAttr(it.attr), it.key); err != nil {
				return err
			}
		}
		enc.AddListChild(g, uc)
	}
	enc.AddListChild(fj, g)
	return nil
}

func (sg *SubGraph) addAggregations(enc *encoder, fj fastJsonNode) error {
	for _, child := range sg.Children {