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https://issues.apache.org/jira/browse/SPARK-34192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17269335#comment-17269335
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Apache Spark commented on SPARK-34192:
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User 'yaooqinn' has created a pull request for this issue:
https://github.com/apache/spark/pull/31281
> Move char padding to write side
> -------------------------------
>
> Key: SPARK-34192
> URL: https://issues.apache.org/jira/browse/SPARK-34192
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Kent Yao
> Priority: Major
>
> On the read side, the char length check and padding bring issues to CBO and
> PPD and other issues to the catalyst.
> It's more reasonable to do it on the write side, as Spark doesn't take fully
> control of the storage layer.
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