Min of date and max of count Tableau

select max(cnt) over(Partition by video_title, country, channel order by video_title, country, channel ) as tt, a.* from (
select video_title, country, channel, post_date ,sum(count) cnt
from matrixschema.facebook_post_level_derived
where country = 'US' and video_title like '%Test to be searched%'
group by video_title, country, channel, post_date
order by post_date
) a

This can be implemented in tableau as:
To get min of date: {FIXED[Country],[Channel], [Video Title]:MIN([Date])}
To get max of `count: SUM({ FIXED [Video Title], [Channel],[Country]:MAX([Count])})

When the max count is used in the report under measure values shelf change the aggregation type to Max( instead of Sum)

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