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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/03/22 09:16:49 UTC

[GitHub] [spark] viirya opened a new pull request #24179: [SPARK-27241][SQL] Support map_keys in SelectedField

viirya opened a new pull request #24179: [SPARK-27241][SQL] Support map_keys in SelectedField
URL: https://github.com/apache/spark/pull/24179
 
 
   ## What changes were proposed in this pull request?
   
   `SelectedField` doesn't support map_keys for now. When map key is complex struct, we should be able to prune unnecessary fields from keys. This proposes to add map_keys support to `SelectedField`.
   
   ## How was this patch tested?
   
   Added tests.

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