请问大神们我不用union all怎么把下面的两个SQL合并啊

select
server_ip,
AVG(latency_dl) as '下行时延',
AVG(Latency_ul)as '上行时延',
sum(size_ul) as '上行流量',
sum(size_dl) as '下行流量'
from shouyou
where server_ip=1902907457
GROUP BY server_ip
union all
select
server_ip,
AVG(latency_dl) as '下行时延',
AVG(Latency_ul)as '上行时延',
sum(size_ul) as '上行流量',
sum(size_dl) as '下行流量'
from shouyou
where server_ip=1709327419
GROUP BY server_ip

select
server_ip,
AVG(latency_dl) as '下行时延',
AVG(Latency_ul)as '上行时延',
sum(size_ul) as '上行流量',
sum(size_dl) as '下行流量'
from shouyou
where server_ip=1902907457 or server_ip=1709327419
GROUP BY server_ip

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