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https://issues.apache.org/jira/browse/SPARK-15794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15317651#comment-15317651
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Apache Spark commented on SPARK-15794:
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User 'ericl' has created a pull request for this issue:
https://github.com/apache/spark/pull/13537
> Should truncate toString() of very wide schemas
> -----------------------------------------------
>
> Key: SPARK-15794
> URL: https://issues.apache.org/jira/browse/SPARK-15794
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Eric Liang
>
> With very wide tables, e.g. thousands of fields, the output is unreadable and
> often causes OOMs due to inefficient string processing.
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