I implemented something like this in a naive way. I took the modified date (previous default sort order) and stored the unix timestamp * 100 in a 64 bit indexed SortVal column. Drag-n-drop sets the SortVal +/-1 relative to the item it is being dropped against. There's only ~30 items per page so I figure it won't break except in the pathological case.
Curious if there is some obvious flaw with this plan or if I really need the power of true fractions.
Curious if there is some obvious flaw with this plan or if I really need the power of true fractions.