KNOWLEDGE BASE

The ISMEMBEROF() function does not use Query Cache and may impact performance


Published: 07 Jan 2023
Last Modified Date: 12 Jan 2023

Question

Does ISMEMBEROF() function ignore query cache which can impact performance?
 

Environment

  • Tableau Server

Answer

Using the ISMEMBEROF() will not use query cache and can impact performance for this row level security function even when not using the ":refresh=y" parameter in the view link. This is expected behavior important for row-level security validation.
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