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https://issues.apache.org/jira/browse/SPARK-52544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18003576#comment-18003576
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Anastasia Filippova commented on SPARK-52544:
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User 'tianhanhu' has created a pull request for this issue:
https://github.com/apache/spark/pull/51235
> Allow configuring Json datasource string length limit through SQLConf
> ---------------------------------------------------------------------
>
> Key: SPARK-52544
> URL: https://issues.apache.org/jira/browse/SPARK-52544
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.1.0, 4.0.1, 3.5.7
> Reporter: Tianhan Hu
> Priority: Major
>
> In https://issues.apache.org/jira/browse/SPARK-43263, Spark upgraded Jackson
> to 2.15.0. This brought in a breaking change that set string max length to
> 20,000 which Json data source picked up. Before the upgrade, there was no
> limit. The limit could only be modified through Json option "maxStringLen".
> This ticket attempts to restore the old no limit behavior, by introducing a
> new JSON_MAX_STRING_LENGTH feature flag.
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