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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2020/01/10 19:00:00 UTC
[jira] [Updated] (SPARK-30447) Constant propagation nullability
issue
[ https://issues.apache.org/jira/browse/SPARK-30447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun updated SPARK-30447:
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Affects Version/s: 2.4.4
> 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: 2.4.4, 3.0.0
> Reporter: Peter Toth
> Assignee: Peter Toth
> Priority: Major
> Fix For: 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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