For Unique Key MoW table, if there are duplicate keys in one single load job and there's multiple segments, we need to calculate delete bitmap to mark these duplicate keys deleted. Add a check here to detect any bugs that might cause duplicate keys.
For Unique Key MoW table, if there are duplicate keys in one single load job and there's multiple segments, we need to calculate delete bitmap to mark these duplicate keys deleted. Add a check here to detect any bugs that might cause duplicate keys.