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Posted to issues@spark.apache.org by "Reynold Xin (JIRA)" <ji...@apache.org> on 2017/04/12 04:30:41 UTC

[jira] [Updated] (SPARK-20302) Short circuit cast when from and to types are structurally the same

     [ https://issues.apache.org/jira/browse/SPARK-20302?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Reynold Xin updated SPARK-20302:
--------------------------------
    Summary: Short circuit cast when from and to types are structurally the same  (was: Optimize cast when from and to types are structurally the same)

> Short circuit cast when from and to types are structurally the same
> -------------------------------------------------------------------
>
>                 Key: SPARK-20302
>                 URL: https://issues.apache.org/jira/browse/SPARK-20302
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Reynold Xin
>            Assignee: Reynold Xin
>
> When we perform a cast expression and the from and to types are structurally the same (having the same structure but different field names), we should be able to skip the actual cast.



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