Big Query Very Slow to Load After Upgrade

Published: 24 Jan 2017
Last Modified Date: 02 Mar 2017


When loading workbooks with a Google BigQuery connection, Tableau Desktop takes much longer to load tables and project list after upgrading to version 10.1.


  • Tableau Desktop 10.1.3
  • Google BigQuery


Use the following workaround:
Upgrade to Tableau Desktop 10.1.4 or a newer version. For more information, see Upgrade Tableau Desktop.
Use the TDC file below. For more information on TDC files, see Make customizations global with a .tdc file.
<connection-customization class='bigquery' enabled='true' version='8.0' >
      <vendor name='bigquery' />
      <driver name='bigquery' />
        <customization name='CAP_BIGQUERY_SKIP_PROJECT_VALIDATION' value='true' />
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 due to a known issue which is currently under investigation.

Additional Information

When using the TDC file, you may see Projects briefly listed in the drop down which disappear just before connection. These projects are not usable for queries, and would generally not be visible in Tableau Desktop.

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