QuestionTableau Dashboard is connected to a published datasource in which there are a few hidden fields. However, if a user connects to the published datasource and tries to convert the connected extract in Tableau Desktop, it unhides the hidden column which contains highly sensitive and critical information and is not supposed to be exposed to the end-user.
1: Tableau Desktop live connection to a database table.
2: Create a calculated Field [B] based on Field [A].
3: Hide Field [A].
3: Create an extract and publish datasource to Tableau Server.
4: Tableau Desktop connects to this published datasource.
5: Create an extract upon the published datasource.
6: The hidden Field [A] reappears.
Desired outcome: The hidden field [A] should not to expose to the end-user.