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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2020/10/04 21:41:00 UTC
[jira] [Assigned] (SPARK-33007) Optimize to_json + named_struct +
from_json expression chain
[ https://issues.apache.org/jira/browse/SPARK-33007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-33007:
------------------------------------
Assignee: Apache Spark (was: L. C. Hsieh)
> Optimize to_json + named_struct + from_json expression chain
> ------------------------------------------------------------
>
> Key: SPARK-33007
> URL: https://issues.apache.org/jira/browse/SPARK-33007
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: L. C. Hsieh
> Assignee: Apache Spark
> Priority: Major
>
> Due to query optimization, it is possibly to generate inefficient json expression chain like to_json(named_struct(col1, from_json(json).col1, col2, from_json(json).col2), ....). We could optimize it.
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