Tableau Public Premium (a paid for service) offers the same but without file size / row number restrictions, includes access to technical support, and the ability to control whether users can download the underlying data. The visualisation that you publish is still open for all the world to see, however. Tableau Online is different because you. Tableau Public is free software that can allow anyone to connect to a spreadsheet or file and create interactive data visualizations for the web. Please find Tableau Public features below. The CData ODBC drivers offer unmatched performance for interacting with live PostgreSQL data in Tableau due to optimized data processing built into the driver. When you issue complex SQL queries from Tableau to PostgreSQL, the driver pushes supported SQL operations, like filters and aggregations, directly to PostgreSQL and utilizes the embedded. Tableau provides limited customer support for connections using Other Databases (ODBC). For example, Support will help you with the sample code provided in Tableau documentation, or if your connection works in Tableau Desktop, but doesn't work in Tableau Server. However, Tableau does not support creating or debugging custom TDC files.