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https://issues.apache.org/jira/browse/SPARK-14225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15216687#comment-15216687
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Apache Spark commented on SPARK-14225:
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User 'sameeragarwal' has created a pull request for this issue:
https://github.com/apache/spark/pull/12044
> Cap the length of toCommentSafeString at 128 chars
> --------------------------------------------------
>
> Key: SPARK-14225
> URL: https://issues.apache.org/jira/browse/SPARK-14225
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Reynold Xin
>
> I just saw a query with over 1000 fields and the generated expression comment
> is pages long. At that level printing them no longer gives us much benefit.
> We should just cap the length at some level.
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