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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2020/03/11 04:13:00 UTC

[jira] [Updated] (SPARK-30893) Expressions should not change its data type/nullability after it's created

     [ https://issues.apache.org/jira/browse/SPARK-30893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wenchen Fan updated SPARK-30893:
--------------------------------
    Summary: Expressions should not change its data type/nullability after it's created  (was: Expressions should not change its data type/behavior after it's created)

> Expressions should not change its data type/nullability after it's created
> --------------------------------------------------------------------------
>
>                 Key: SPARK-30893
>                 URL: https://issues.apache.org/jira/browse/SPARK-30893
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Wenchen Fan
>            Priority: Critical
>             Fix For: 3.0.0
>
>
> This is a problem because the configuration can change between different phases of planning, and this can silently break a query plan which can lead to crashes or data corruption, if data type/nullability gets changed.



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