Uninstall current Vertica drivers and install HP Vertica Driver version 6.1.3.
Use the generic ODBC connector and select Report Unicode columns as char.
Place the attached vertica utf.tdc in the following directories: For Tableau Desktop on Windows: Documents\My Tableau Repository\Datasources For Tableau Server: Program Files\Tableau\Tableau Server\<version>\bin
Note: Tableau does not test or support TDC files. These files should be used as a tool to explore or occasionally address issues with your data connection. Creating and maintaining TDC files requires careful manual editing, and there is no support for sharing these files.
This behavior is related to a known issue which has been corrected in more recent versions.
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