When you connect a data source, Tableau automatically infers the type of each column of your data. Whether it's Number (decimal), Number (whole), String, Boolean, etc. A few questions about this:
1) Has Tableau ever misclassified one (or more) columns of your data with their automatic labeling? If so, would you please give details?
2) Do you feel that these data type options can be improved? For example, Tableau doesn't seem to be distinguishing between unordered categorical data and ordinal data.