KNOWLEDGE BASE

Unable to Joining BigQuery Tables that Contain Same-Named Columns with Different Capitalization


Published: 24 Mar 2017
Last Modified Date: 24 May 2017

Issue

When joining BigQuery tables that contain same-named columns with different capitalization, the following error might occur:

The Google BigQuery service was unable to compile the query. 
Duplicate column names in the result are not supported. Found duplicate(s):

Environment

  • Tableau Desktop 10.1.0
  • Google BigQuery

Cause

This behavior is related to a known issue (ID 630566) that has been fixed in a recent version of Tableau Desktop. 
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