TL;DR: If using :group => :some_field you might want to :order => 'NULL'. According to the man By default, MySQL...
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We had a strange behaviour on one of our mariadb-servers: Everyday at around midnight we saw that the root...
between 2 dates select latest_date, lowest_date, floor(datediff(date(latest_date), date(lowest_date)) / 365) from your_table