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Posted to issues@spark.apache.org by "huangtengfei (Jira)" <ji...@apache.org> on 2021/05/15 15:04:00 UTC
[jira] [Commented] (SPARK-35411) Essential information missing in
TreeNode json string
[ https://issues.apache.org/jira/browse/SPARK-35411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17345060#comment-17345060 ]
huangtengfei commented on SPARK-35411:
--------------------------------------
Maybe we can write out product objects which contain expressions or plan to avoid such cases.
> Essential information missing in TreeNode json string
> -----------------------------------------------------
>
> Key: SPARK-35411
> URL: https://issues.apache.org/jira/browse/SPARK-35411
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.1.1
> Reporter: huangtengfei
> Priority: Minor
>
> TreeNode can be serialized to json string with the method toJSON() or prettyJson(). To avoid OOM issues, [SPARK-17426|http://example.comhttps//issues.apache.org/jira/browse/SPARK-17426] only keep part of Seq data that can be written out to result json string.
> Essential data like [cteRelations|https://github.com/apache/spark/blob/v3.1.1/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala#L497] in node With, [branches|https://github.com/apache/spark/blob/v3.1.1/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/conditionalExpressions.scala#L123] in CaseWhen will be skipped and written out as null.
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