Hive 中，有表 t_view_log，数据如下： uid

select count(1) as pv ,count(distinct uid) as uv from t_view_log

select count(1) as pv ,count(uid) as uv from t_view_log where dt='2023-11-11'

select count(1) as pv ,count(distinct uid) as uv from t_view_log where dt='2023-11-11'

select count(distinct uid) as pv ,count(uid) as uv from t_view_log where dt='2023-11-11'