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From "Dongjoon Hyun (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-30447) Constant propagation nullability issue
Date Mon, 02 Mar 2020 22:17:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-30447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dongjoon Hyun updated SPARK-30447:
----------------------------------
    Affects Version/s: 2.3.0
                       2.3.1
                       2.3.2
                       2.3.3

> Constant propagation nullability issue
> --------------------------------------
>
>                 Key: SPARK-30447
>                 URL: https://issues.apache.org/jira/browse/SPARK-30447
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.4.4, 3.0.0
>            Reporter: Peter Toth
>            Assignee: Peter Toth
>            Priority: Major
>              Labels: correctness
>             Fix For: 2.4.5, 3.0.0
>
>
> There is a bug in constant propagation due to null handling:
> SELECT * FROM t WHERE NOT(c = 1 AND c + 1 = 1) returns those rows where c is null due
to 1 + 1 = 1 propagation, but it shouldn't.



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