django数据库设计时你会有太多行

I have a django web app with postgres db; the general operation is that every day I have an array of values that need to be stored in one of the tables. There is no foreseeable need to query the values of the array but need to be able to plot the values for a specific day. The problem is that this array is pretty big and if I were to store it in the db, I'd have 60 million rows per year but if I store each row as a blob object, I'd have 60 thousand rows per year.I have a django web app with postgres db; the g