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Posted to issues@spark.apache.org by "Dongjoon Hyun (JIRA)" <ji...@apache.org> on 2019/03/24 06:15:00 UTC
[jira] [Resolved] (SPARK-27241) Add map_keys and map_values support
to SelectedField in nested schema pruning
[ https://issues.apache.org/jira/browse/SPARK-27241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun resolved SPARK-27241.
-----------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
This is resolved via https://github.com/apache/spark/pull/24179
> Add map_keys and map_values support to SelectedField in nested schema pruning
> -----------------------------------------------------------------------------
>
> Key: SPARK-27241
> URL: https://issues.apache.org/jira/browse/SPARK-27241
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Liang-Chi Hsieh
> Assignee: Liang-Chi Hsieh
> Priority: Major
> Fix For: 3.0.0
>
>
> {{SelectedField}} in nested schema pruning doesn't support map_keys and map_values now. When map key or map value is complex struct, we should be able to prune unnecessary fields from keys/values.
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