Mathew Wicks created SPARK-20207:
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Summary: Add ablity to exclude current row in WindowSpec
Key: SPARK-20207
URL: https://issues.apache.org/jira/browse/SPARK-20207
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.1.0
Reporter: Mathew Wicks
Priority: Minor
It would be useful if we could implement a way to exclude the current row in
WindowSpec. (We can currently only select ranges of rows/time.)
Currently, users have to resort to ridiculous measures to exclude the current
row from windowing aggregations.
As seen here:
http://stackoverflow.com/questions/43180723/spark-sql-excluding-the-current-row-in-partition-by-windowing-functions/43198839#43198839
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