KNOWLEDGE BASE

Error "Unable to mangle alias for field" When Joining Tables


Published: 02 Jul 2015
Last Modified Date: 04 Sep 2015

Issue

When joining tables that begin with the same characters, the following error might occur:

Unable to mangle alias for field <fieldname>

Environment

Tableau Desktop 8.2-9.0

Resolution

Rename the tables in Tableau Desktop so that they do not start with the same first four characters, and then recreate the join.

Cause

This behavior is related to a known issue that is currently under investigation.
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