How do I get last years same week data?
I used fq=trans_date:[NOW-1YEAR/DAY-7DAY TO NOW-1YEAR/DAY] on date field which will give me last 7 days data for last year. But that approach doesn't take into account calender weeks.
It's probably easier to calculate the boundaries for your week number last year in the frontend and then query Solr with the date interval. That way you can get the behavior you want regarding sundays/mondays as well.