func (l *Limit) Resolved() bool {
	return l.UnaryNode.Child.Resolved()
}
Resolved implements the Resolvable interface.
package plan
import (
	"io"
	opentracing "github.com/opentracing/opentracing-go"
	"github.com/src-d/go-mysql-server/sql"
)
type Limit struct {
	UnaryNode
	Limit int64
}
func NewLimit(size int64, child sql.Node) *Limit {
	return &Limit{
		UnaryNode: UnaryNode{Child: child},
		Limit:     size,
	}
}