Wan Kun created SPARK-40164:
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Summary: The partitionSpec should be distinct keys after filter
one row of row_number
Key: SPARK-40164
URL: https://issues.apache.org/jira/browse/SPARK-40164
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.3.0
Reporter: Wan Kun
For query
{code:sql}
SELECT *
FROM (
SELECT *, row_number() over(partition by key order by value) rn
FROM testData t
) t1
WHERE rn=1
{code}
column *key* will be distinct
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