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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/02/12 06:14:19 UTC

[GitHub] [spark] cloud-fan commented on issue #27542: [SPARK-30790]The dataType of map() should be map

cloud-fan commented on issue #27542: [SPARK-30790]The dataType of map() should be map<null,null>
URL: https://github.com/apache/spark/pull/27542#issuecomment-585047698
 
 
   how about a single config `spark.sql.legacy.createEmptyCollectionUsingStringType`?

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