Kousuke Saruta created SPARK-3831:
-------------------------------------

             Summary: Filter rule Improvement and bool expression optimization.
                 Key: SPARK-3831
                 URL: https://issues.apache.org/jira/browse/SPARK-3831
             Project: Spark
          Issue Type: Improvement
            Reporter: Kousuke Saruta


If we write the filter which is always FALSE like

{code}
SELECT * from person WHERE FALSE;
{code}

200 tasks will run. I think, 1 task is enough.

And current optimizer cannot optimize the case NOT is duplicated like

{code}
SELECT * from person WHERE NOT ( NOT (age > 30));
{code}

The filter rule above should be simplify.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to