Пример #1
0
func (this *Server) getPrepared(request Request, namespace string) (*plan.Prepared, errors.Error) {
	prepared := request.Prepared()
	if prepared == nil {
		parse := time.Now()
		stmt, err := n1ql.ParseStatement(request.Statement())
		if err != nil {
			return nil, errors.NewParseSyntaxError(err, "")
		}

		prep := time.Now()
		prepared, err = planner.BuildPrepared(stmt, this.datastore, this.systemstore, namespace, false)
		if err != nil {
			return nil, errors.NewPlanError(err, "")
		}

		if logging.LogLevel() >= logging.TRACE {
			request.Output().AddPhaseTime("plan", time.Since(prep))
			request.Output().AddPhaseTime("parse", prep.Sub(parse))
		}
	}

	if logging.LogLevel() >= logging.DEBUG {
		// log EXPLAIN for the request
		logExplain(prepared)
	}

	return prepared, nil
}
Пример #2
0
func (this *Server) getPrepared(request Request, namespace string) (*plan.Prepared, errors.Error) {
	prepared := request.Prepared()
	if prepared == nil {
		parse := time.Now()
		stmt, err := n1ql.ParseStatement(request.Statement())
		if err != nil {
			return nil, errors.NewParseSyntaxError(err, "")
		}

		prep := time.Now()
		prepared, err = planner.BuildPrepared(stmt, this.datastore, this.systemstore, namespace, false)
		if err != nil {
			return nil, errors.NewPlanError(err, "")
		}

		// In order to allow monitoring to track prepared statement executed through
		// N1QL "EXECUTE", set request.prepared - because, as of yet, it isn't!
		//
		// HACK ALERT - request does not currently track the request type
		// and even if it did, and prepared.(*plan.Prepared) is set, it
		// does not carry a name or text.
		// This should probably done in build.go and / or build_execute.go,
		// but for now this will do.
		exec, ok := stmt.(*algebra.Execute)
		if ok && exec.Prepared() != nil {
			prep, _ := plan.TrackPrepared(exec.Prepared())
			request.SetPrepared(prep)
		}

		if logging.LogLevel() >= logging.TRACE {
			request.Output().AddPhaseTime("plan", time.Since(prep))
			request.Output().AddPhaseTime("parse", prep.Sub(parse))
		}
	}

	if logging.LogLevel() >= logging.DEBUG {
		// log EXPLAIN for the request
		logExplain(prepared)
	}

	return prepared, nil
}