code: func (pq PreparedPartialQuery) Partial(ctx context.Context, options ...EvalOption) (*PartialQueries, error) {
  	ectx, err := pq.newEvalContext(ctx, options)
  	if err != nil {
  		return nil, err
  	}
  
  	ectx.compiledQuery = pq.r.compiledQueries[partialQueryType]
  
  	return pq.r.partial(ctx, ectx)
  }
docs: // Partial runs partial evaluation on the prepared query and returns the result.