When I analyze a column in a dataset, I have the options "sample" and "whole data". On "whole data", i only get the percentages of empty vs. non-empty, in "Sample", I also get the number of unique values. I assume this is because doing the job on "Whole data" uses an approximate method like HyperLogLog? If so, what is the error rate parameters, and is there a way to get the actual distinct count without using Python?