> > transformSortClause is passed the untransformed aggorder list, which is > in fact a list of SortBy nodes, and it returns the transformed list > (SortGroupClause nodes), which is stored back into the aggorder field > a bit further down. > > There are a number of regression tests that would fail in obvious ways > if this code didn't work. > > Right Tom. I got confused, because the comment at Aggref struct definition told that it is a list of SortGroupClause. May be you can update your comments there.
Thanks, Gokul.
