7 Replies Latest reply on Dec 29, 2015 9:46 AM by Kirill Andriychuk

    How does Tableau recognise dimensions and metrics?

    Kirill Andriychuk

      I am interested to find out how does Tableau recognise dimensions and metrics in a custom query? Working with a table is easy as the column metadata can be looked up in the information schema (in case of MySQL). However, when user builds a custom query where the user can cast a number as string and vice versa, how does Tableau recognise the data type in that case? does it take a sample of the data and tries to parse it?