select datetime
     , n.site_id
     , avg(packet_loss_rate_of_twamp_detecting_link)  as packet_loss_rate_of_twamp_detecting_link
     , avg(average_delay_of_twamp_detecting_link_ms)  as average_delay_of_twamp_detecting_link_ms
     , avg(average_jitter_of_twamp_detecting_link_ms) as average_jitter_of_twamp_detecting_link_ms
from r11.pl_4g_15min p
         join network_site n on p.network_site_id = n.id
where date between '2023-12-01' and '2023-12-07'
group by datetime
       , n.site_id
order by n.site_id
       , datetime;