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Received Error in Tableau working with PostgreSQL UUIDs

Published: 25 Mar 2022
Last Modified Date: 11 May 2022

Issue

When a user connects to PostgreSQL and update the data from Tableau Desktop, the following error occurs:
 
ERROR: operator does not exist: text=uuid
Hint: No operator matches the given name and argument types. You might need to add explicit type casts.
 Position: xxxx

Error Code: 975DF5A2

or
 
ERROR: function min(uuid) does not exist 
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: xxxx

Error Code: 975DF5A2

Environment

  • Tableau Desktop 2021.4.4
  • PostgreSQL

Resolution

Option 1

Hide the columns or replace tables with custom SQL that do not include these columns.
 

Option 2

Use custom SQL to explicitly cast that column to text. If there are multiple tables joined, make sure casting is presented on all the tables.

Cause

Two issues are involved:
  1. A PostgreSQL column of type uuid and it is not well supported by Tableau. 
  2. The casting is not presented on all tables when querying the database.
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