>
> ​I am fairly certain this does not give you the correct results.
> Specifically, the minimum value for each cDate is going to be 1 since
> count(*) counts NULLs.  count(u) should probably work.
> ​
>
> Yes you are right, I forgot to change COUNT(*) to COUNT(id), as you
mention COUNT(u.*) will also work. I just couldn't get the idea of
generating a sequence form 0 to 6 to work correctly. The approach I'm using
seems to give the correct results (with COUNT(u.id)).

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