Stephan Szabo wrote:
> Your step 3 above isn't well defined in general. There's no single place
> in the sort order for a value of a column being distincted when the value
> occurs multiple times. In the data above, col1='b' occurs twice in the
> sort order and you need to give an indication of which place in the sort
> order you want to use.
Ok, let's look for alternatives.
Is it possible to add a serial column to my ordered result ?
I hope there is a way to do it without temporary tables as I want to keep
it all in 1 query.
TFYH
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