To further expand upon what Corion pointed out, it is always returning the same array reference, the question is why?

The point of using the fetchrow_* is to allow the programmer to reduce their memory footprint by limiting the amount data (and therefore memory) be accessed. One of the ways it does this is to return the same array reference for each 'fetch' instead of generating and returning a new array (and an associated array reference) for each row.

If you did not care about memory management than you could use 'selectall_arrayref()' instead.