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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/12/19 18:40:00 UTC

[jira] [Assigned] (SPARK-26402) Canonicalization on GetStructField

     [ https://issues.apache.org/jira/browse/SPARK-26402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-26402:
------------------------------------

    Assignee: Apache Spark  (was: DB Tsai)

> Canonicalization on GetStructField
> ----------------------------------
>
>                 Key: SPARK-26402
>                 URL: https://issues.apache.org/jira/browse/SPARK-26402
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: DB Tsai
>            Assignee: Apache Spark
>            Priority: Major
>
> GetStructField with different optional names should be semantically equal. We will use this as building block to compare the nested fields used in the plans to be optimized by catalyst optimizer.



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