问如何在一个结果中合并两行，但不合并所有结果？

EN

select  case when Name = 'Project1' then 'Project1'
             when Name = 'Project2' then 'Project1'
             else Name
        end as NAME
.......
group by case when Name = 'Project1' then 'Project1'
             when Name = 'Project2' then 'Project1'
             else Name
        end

 select  case when Name = 'Project1' and TimeEnd = getdate()  then 'Project1'
                 when Name = 'Project2' and TimeEnd = dateadd(MONTH, -1, getdate()) then 'Project1'
                 else Name
            end as NAME
    .......
    group by case when Name = 'Project1' and TimeEnd = getdate()  then 'Project1'
                 when Name = 'Project2' and  TimeEnd = dateadd(MONTH, -1, getdate()) then 'Project1'
                 else Name
        end

SELECT NAME, AVG(Current Month) as Current Month, count(Sample) as Sample, min(Previous Month) as Previous Month, min(Sample2) as Sample2, min(Two Months ago) as Two Months ago,
min(Sample3) as Sample3
FROM
(
select  Name ,
        avg(TimeProcessing + TimeRendering + TimeDataRetrieval) / 1000  as 'Current Month' ,
        isnull(count(TimeProcessing), 0)                                as 'Sample' ,
        min(l2.[Avg_Exec_Time_Previous_Month])                          as 'Previous Month' ,
        isnull(min(l2.[Executions_Last_Month]), 0)                      as 'Sample2' ,
        min(l3.[Avg_Exec_Time_Two_Months_Ago])                          as 'Two Months ago' ,
        isnull(min(l3.[Executions_Two_Months_Ago]), 0)                  as 'Sample3'
from    marlin.report_execution_log l
        inner join marlin.report_catalog c on l.ReportID = c.ItemID
        left outer join ( 
                        select    
                            l2.ReportID ,
                            (
                            avg(l2.TimeProcessing + l2.TimeRendering 
                            + l2.TimeDataRetrieval) / 1000 
                            ) as 'Avg_Exec_Time_Previous_Month' ,
                            count(l2.TimeProcessing) as 'Executions_Last_Month'
                        from    
                            marlin.report_execution_log l2
                        where   
                            TimeEnd between dateadd(MONTH, -2, getdate())
                                    and     dateadd(MONTH, -1, getdate())
                        group by  
                            l2.ReportID
                        ) l2 on l.ReportID = l2.ReportID
        left outer join ( 
                        select    
                            l3.ReportID ,
                            (
                            avg(l3.TimeProcessing + l3.TimeRendering + l3.TimeDataRetrieval) / 1000 
                            ) as 'Avg_Exec_Time_Two_Months_Ago' ,
                            count(l3.TimeProcessing) as 'Executions_Two_Months_Ago'
                        from  
                            marlin.report_execution_log l3
                        where 
                            TimeEnd between dateadd(MONTH, -3, getdate())
                                    and     dateadd(MONTH, -2, getdate())
                        group by  
                            l3.ReportID
                        ) l3 on l.ReportID = l3.ReportID
group by    l.ReportID ,
            Name
)
group by  Name
order by    2 desc