Davies Liu created SPARK-8579:
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Summary: Support arbitrary object in UnsafeRow
Key: SPARK-8579
URL: https://issues.apache.org/jira/browse/SPARK-8579
Project: Spark
Issue Type: New Feature
Components: SQL
Reporter: Davies Liu
Assignee: Davies Liu
It's common to run count(distinct xxx) in SQL, the data type will be UDT of
OpenHashSet, it's good that we could use UnsafeRow to reducing the memory usage
during aggregation.
Also for DecimalType, which could be used inside the grouping key.
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