github.com/go-pg/pg/v10/orm.hasManyColumnsAppender.AppendQuery (method, view implemented interface methods)

one use

	github.com/go-pg/pg/v10/orm (current package)
		join.go#L298: func (q *hasManyColumnsAppender) AppendQuery(fmter QueryFormatter, b []byte) ([]byte, error) {