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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2021/07/04 02:30:00 UTC
[jira] [Commented] (SPARK-35964) spark 3.1.1 version the method
schema of class DataframeReader will lose the original type information
of char/varchar
[ https://issues.apache.org/jira/browse/SPARK-35964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17374154#comment-17374154 ]
Hyukjin Kwon commented on SPARK-35964:
--------------------------------------
[~biaobiao.sun] the images look broken. Can you show some codes instead?
> spark 3.1.1 version the method schema of class DataframeReader will lose the original type information of char/varchar
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-35964
> URL: https://issues.apache.org/jira/browse/SPARK-35964
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.1, 3.1.2
> Reporter: Sun BiaoBiao
> Priority: Major
>
> in spark 3.1.1 version, the method schema of class DataframeReader will lose the original type information of char/varchar
>
> !image-2021-07-01-14-54-49-922.png!
>
>
> !image-2021-07-01-14-55-03-117.png!
>
>
> It is expected that it can be placed in the metadata of the field, and the original type information can be obtained in subsequent processing
>
>
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