jin xing created SPARK-25725:
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Summary: Add a new expression "SortMaps" to sort the entries
inside a "MapData"
Key: SPARK-25725
URL: https://issues.apache.org/jira/browse/SPARK-25725
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 2.3.2
Reporter: jin xing
This is a subtask of SPARK-18134. After
https://issues.apache.org/jira/browse/SPARK-25724, we will have the
functionality to sort maps which are already ordered themselves.
This JIRA is to add the approach to sort the entries inside a single "MapData".
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