Vladimir Golubev created SPARK-58420:
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Summary: COUNT(DISTINCT ...) does not sort maps in the argument
trees
Key: SPARK-58420
URL: https://issues.apache.org/jira/browse/SPARK-58420
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 4.3.0
Reporter: Vladimir Golubev
Injecting MapSort is necessary for maps to be grouped correctly. We currently
do that for GROUP BY, but we missed that for the COUNT(DISTINCT ...)
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