code: func (p *PhysicalIndexLookUpReader) ResolveIndices() (err error) {
  	err = p.tablePlan.ResolveIndices()
  	if err != nil {
  		return err
  	}
  	err = p.indexPlan.ResolveIndices()
  	if err != nil {
  		return err
  	}
  	return
  }
docs: // ResolveIndices implements Plan interface.