[Changed] wixData.update() is makng new item in DS why?

Yeah, I know that and that is what I mentioned earlier. But the fact is that it would become very difficult for me to specify each and every item to get updated as I have 90 columns in my dataset.

So I am asking that is there any other method to update my dataset without losing the items I won’t mention or we could do some changes in the wixData.update() function itself to get things sorted.