[jira] [Created] (SPARK-42638) current_user() is blocked from VALUES, but current_timestamp() is not

["Serge Rielau (Jira)" <ji...@apache.org>]

Serge Rielau created SPARK-42638:
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             Summary: current_user() is blocked from VALUES, but current_timestamp() is not
                 Key: SPARK-42638
                 URL: https://issues.apache.org/jira/browse/SPARK-42638
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 3.3.0
            Reporter: Serge Rielau


VALUES(current_user());
returns:

cannot evaluate expression current_user() in inline table definition.; line 1 pos 8

 

The same with current_timestamp() works.

It appears current_user() is recognized as non-deterministic. But it is constant within the statement, just like current_timestanmp().

PS: It's not clear why we block non-deterministic functions to begin with....



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