Re: Typo on tutorial window page

"As shown here, the rank function produces a numerical ranking within each partition, using the order defined by the ORDER BY clause.  Ranking assigns the same rank to all rows that tie according to the order by criteria, while still incrementing the rank counter.  Thus there are gaps in the serial numbering.  These can be removed by instead using the dense_rank window function.  Ties can instead be given their own unique value by using the row_number window function.  In all these cases, as the window function is effectively just counting rows, the function itself has no input parameter."

If we don't want to get into that level of nuance in the tutorial I suggest we use the row_number() window function instead of rank, and just say because we count rows no parameter is needed.

David J.